The issue was never Stuttering. The issue is it cutting the ends off *all* the notes at release instead of letting them ring out. Its definately a bug, not a performance issue. But I don't know if its in Play or Mixcraft (Kontakt doesn't do it in Mixcraft. Play doesnt do it in Studio One/etc. Its..... weird)
I kind of drove myself into a corner on this one re projects and time so I'm using Studio One for now which does pretty much everything I need except perhaps the lack of score view [and I dont really edit on score view, its just easier for me when reading music, and trying to reason about arangements]. But I'll check back next release of either Play or Mixcraft and see if the situations improved. I kind of need better midi routing anyway and I have to assume thats high on the todo list.
edit: This isn't meant as an insult to Mixcraft. I just have a few specific needs that don't quite align right now regarding midi routing, SMPTE sync and the Play issue. Its still my #1 recomendation to everyone who comes to my studio asking for advice on getting started.
Windows 10. Intel i7 quadcore something. 16gigs ram. assorted mech and SSD hard drives.
Focusrite liquid pre 56. 2x Golden age 73 pres. FMR Audio RNC compressor.
Tascam 38 tape, and Yamaha 8 track cassette portastudio like a boss.