Quick responses:
RSIVX - this will undoubtedly sound like 20/20 hindsight, since I'm not on the record with my impressions when the fund was announced. Nevertheless, I was skeptical because it sounded like it was being promoted as an extension (in bond maturity) of the RPHYX strategy. That didn't (and doesn't) make too much sense to me.
RPHYX buys bonds that are somewhat like pre-refunded bonds - the money is there and all you're waiting for is for the clock to run out. With RSIVX you're saying that the bonds are "money good" because the company is worth enough (book value?) to cover the bonds. But with a longer time frame, stuff happens. The type of research would seem to be different. For RPHYX the difficulty is in finding and acquiring lots of little pieces. For RSIVX you have to dig more deeply into the companies.
Either I misunderstood (and continue to misunderstand) the fund, or the marketing was based on reputation. Either way, I wasn't inclined to look more closely at this fund, especially since it wasn't a good match for the type of fund I was most interested in. Doesn't mean it isn't good, just means I haven't looked enough.
WCPNX - I listed it because it had shown up in some recent screening, though I couldn't tell you exactly what parameters I used. The cursory check I did you already read - management that I recognized, cost, performance. I may have been going by the name. I agree that those low numbers are not suggestive of a core plus bond fund. But I'd like to look more closely at its portfolio history before saying more one way or the other.

@msf Thanks for these careful thoughts and list, very much appreciated. FWIW, right now I look to bonds for ballast, so I'm only in RPHYX and SUBFX. In the past I invested is LSBDX and did okay, but since it was in a taxable account, it felt more sensible to have that money in equities for that kind of risk/reward curve.
If you like RPHYX, what do you think of RSIVX? It hasn't gotten a lot of love on this board since David's initial write-up, but it seems to be doing what it promised: providing a little less return than standard high yield bond fund with quite a bit less risk.
I'm tempted to put some money in it that I expect to need for a down payment in 2 years or so.

And let's not forget about the promised returns of 7% to 8% in the sister fund of RPHYX - RSIVX

Anyone have any experience and/or thoughts on this fairly new (September 2016) RiverPark fund. It is not managed by Cohanzick Management (David Sherman) of the Riverpark High Yield (RPHYX/RPHIX) & Strategic Income (RSIVX/RSIIX) funds, and there's no real history but it looks interesting as a commercial real estate mortgage play with a yield based on the monthly LIBOR rate resets. Mr. Snowball posted a Launch Alert back in October but I see nothing else in the archives.
The main drawback I see to this fund (other than its being an MBS) is its structure as a closed-end "interval" fund and a limitation of only being able to redeem (sell) shares on a quarterly basis. In all probability, the 5-25% of outstanding shares quarterly repurchase limitation would never (probably never?) be invoked, but it is a consideration limiting ones personal liquidity.
Other comments?
/dave

The problem is one shouldn't really invest 100% in 1 fund like VWINX. It is just too risky to do that. If there was "guarantee" I would get 3%, keep my principle, year after year in retirement, accepting the occasional loss, is one thing. However, I need multiple funds like that invest in retirement to offset single fund list.
In my Scottrade IRA, I keep a few "income" funds. I don't trade them. Not that I'm retiring, but just use remaining money to get in/out of stocks while I keep part of it always invested in income funds. VWELX/VWINX would be swell to own in this portfolio, but I just don't have that option. I'm making do with RNDLX, SIRIX, ETNMX, MAINX, RPHYX, RSIVX, PLMDX (for now) and IRNIX (contemplating)

Nothing is zero risk. Wells Fargo funds shouldn't be bought on first principles.
Take a look at SIRIX and SSIIX. ER is very high, but these guys seem to be navigating portfolio well and do actively focus on capital preservation. I've had SIRIX in my IRA for a while along with RPHYX and RSIVX.

Hi, Derf.
No, the "beating" came at Mr. Sherman's other fund, RiverPark Strategic Income. Things went poorly with two positions at once, which causes a sustained dip in performance. RPHYX's maximum drawdown by 0.5% in August 2015. RSIVX's maximum drawdown occurred in February 2016, with a peak to trough drop of 7.6%. It's up 13.4% since then.
David

The tax implications of MLPs is driving me away from them. Perhaps I should get over my fears. Thing is there is already so much to RE-search and ANAL-yse. So I have always avoided REITs and MLPs and the like.
Even bonds I am not comfortable with. So use balanced funds even in taxable accounts, e.g. VWELX and JPVDX. I only became poor man's 007 with RPHYX and RSIVX. Maybe after I retire and if still alive I will look in to MLPs when I would have more time on my hands. Right now if I use that time, I couldn't post this message.

Best: RPHYX/RPHIX - I annually funded it for 2 years worth of monthly withdrawals as our retirement 'paycheck'.
Mixed Bag: RSIVX/RSIIX - On the taxable side, I did a little tax loss harvesting and then reinvested once Mr Sherman got the train back on the track. On the IRA side, it's been an interesting ride, but in the long run, it has been an overall gainer. ( I tend to be a buy & hold traditionalist )
Worst: The RiverPark Focused Value Fund RFVIX/RFVFX
Speaking of which: Whatever happened to the occasional Conference Call invitations? I haven't seen any for awhile...

Best: SFGIX, FMIJX and DSENX. Worst: RSIVX.

I have RWGFX and RSIVX in IRA. SEEDX I never did sell, and sold SCMFX itself. Now that I remember, SCMFX was my biggest blunder.

Best: DSENX, SFGIX, Grandeur Peak, RPHYX
Disappointments: SEEDX, RWGFX, FOBAX, RSIVX

Best are FMIMX, RSIVX, MSCFX
Worst is EXTAX

Best- rphyx/rphix, prsnx, rncox,pondx,vmnvx
Worst- rsivx. purchased just before it flailed and it ended up being tax harvested. repurchased recently.

Thank you Mr. Snowball.
I opine...
SSTHX - out of the reckoning on first principles. Wells Fargo...FAR GO I.
GABCX - Succession issues.
ZEOIX - not available at Brokerages (I know, I know, I'm being picky)
MWSTX - Just look at the chart and see what happened in 2008. No sirreee...
ENIAX, SEEAX - $100,000K minimum. Nope
ITAAX - After Dot Com Bust can't look at this fund company ever again, just like can't look at Invesco ever again
HLGFX - $1MM minimum, so looked at ONUAX which dropped a M*, then looked at chart around 2008. Nope dee doo.
RPHIX - I own RPHYX
BRASX - BATAX may be more accessible to buy, but BRASX is Corporate Bond and BATAX is Intermediate Bond, and someone please put M* out of business.
So all in all, ZEOIX is it for me looks like...
Question - Where do I get max DD numbers if MFO does not track fund. I own IRNIX and wanted to see how it did. Rolling returns on 1 year basis at M* not looking too bad at first glance, but I'm worried I am not evaluating correctly.
Finally - I also own FPNIX. Thinking RPHYX, RSIVX, IRNIX, FPNIX - I should just chill out.

I have been intrigued by GADVX, but never pulled the trigger. I have used RPHYX, RSIVX, LCMAX, MINT, and some free trade ETF

Thanks for all of the suggestions! I hold RSIVX which I consider to be in that 3-5 year timeframe. I had found ZEOIX to be intriguing when I had looked before but at least at that point it was not ntf through fidelity. Hopefully that has changed. I will do some research on the other funds listed as well. I appreciate everyone's suggestions.
-psuche98

Hmmm...I never heard of PTIAX and it has a maturity out 7-8 years. Need to research. I do own both RPHYX and RSIVX in both taxable and tax deferred accounts.
I am really trying to avoid directly holding fund with the fund company. It is just a pain at tax time. Very few funds I own direct. PTIAX is available at brokerages so its a plus. Funny thing is its municipal bond fund has capital preservation in the goal, PTIAX doesn't, and very wierd part is that for fact sheet of PTIAX it mentioned municipal bonds are undervalued while for THAT funds fact sheet it mentions no such thing.
If anyone aware of any manager interviews or something for PTIAX, kindly link. Google didn't help me out, but then you have to know what to search for.

Some other taxable fixed-income mutual fund categories, not well represented in the AGG, with significantly different results per M* category return pages: multisector +7.6%, bank loan +9.2%, high yield +13.3%, emerging mkts +10.0%.
Short duration high yield funds (not a M* category): RSIVX +9.9%, OSTIX +11.0%.

Basically you're looking at bond funds whose portfolios land them in the lower left corner of the style box (short term, junk)?
That covers a pretty broad swath of funds. Bank loan funds, obviously. More generally, any floating junk (since the float keeps effective duration small). Also some other funds of interest: DBLTX +2.17%, JUCTX +3.92%, ZEOIX + 4.32%, DFLEX +5.48%, TGBAX +6.61%, BXIAX +14.59%.

Some other taxable fixed-income mutual fund categories, not well represented in the AGG, with significantly different results per M* category return pages: multisector +7.6%, bank loan +9.2%, high yield +13.3%, emerging mkts +10.0%.
Short duration high yield funds (not a M* category): RSIVX +9.9%, OSTIX +11.0%.