Next was a struggle with the edge after 
opening it up to clean.  ... Did what a lot of folks do.. hit it with a reprofiling at ~17dps. Bad idea.. edge waschippy and edge retention poor. Redo it again at 18.5 and was better but still wasn't optimal until adding a ~22 microbevel.  Been stropping it quite a bit since. Over time the edge is kinda slight convex by now which is really the best thing that happen... Just a couple swipe on the strop each week to maintain.
(I found out much later that Shiro edges are typically between 20 - 22.5 dps). 
Scratches? I can relate to that part. Though the decision to make it an actual edc was made early.. but my fumbling fingers adding a few scratches on the blade throughout during sharpening really hasten the transition process 
 
		 
Nice 95, a_d, and good post for sure.  What vintage is that knife?
I discovered the same range variation regarding the factory angle on Shiro edges when I went to touch up my four on the SharpMaker.  My F3 Python and F95T were dead-balls 20 p/side and just popped to amazing sharpness running quickly up through 3 grits from brown to extra-fine with a quick strop on green-loaded leather.  The only Shiro I've picked up that was wicked sharp when I got it is my Tabargan and I just stropped that one some.
I tried my 111 last, discovered that to be in the 22-ish range you mentioned, and couldn't get to the apex on the SM.  I was just digging into the shoulder of the primary.  I love the thin-as-hell look of the edge bevels on Shiros and had been reluctant to re-profile one, but figured it was as good a time as any to give it a shot and out came the EdgePro.  As I mentioned in the previous post, it took quite a lot of work, but I'm really pleased with the results.  What surprised me--but really shouldn't have--when I was done was that the edge really doesn't look any broader.  Just goes to show how wonderfully thin-behind-the-edge that knife is.  Big :thumbup: for that full flat grind!
That 15 p/s with the 20 p/s micro is my preferred edge, with the 15 done and polished on the EP and the 20 done on the SM and stropped.  Makes touch-ups easy on the SM and stropping yields that slightly convex edge you mentioned.  Another big :thumbup: for that one too!
As to the chippiness you mentioned in your F95 at steeper angles, my only experience with S90V has been with a BM 940-1, a knife which I only liked for its handle-scales.  The factory edge on that was toothy, but wicked sharp, and developed a couple tiny chips early on.  I cleaned it up and sold that one.  Have you found similar results with low-degree angles on Shiros in other steels?
And yeah, my light scratch on the 111 and another on my Python came from my usual ham-handedness when sharpening.  Disappointing, yes, but like you said, it makes it way easier to stick the knife in your pocket and actually cut stuff with it as intended.  
 
  
PS:  It seems the sun hasn't shone here on the Cape for weeks, but it's finally forecast for partly today and mostly tomorrow.  I'll see if I can get some good edge pics to post....