Thanks for the input. I also didn't mention that I recently got a KKM 6" barrel for my Gen 4 20 as well, so I won't be shooting these loads in my stock barrel.
I'm trying minimize any smileys, pressure wise and still get high end speed.
I'm sort of leaning toward AA#9 or Longshot as well. I've heard some good things about the VitaV powders, but boy are they expensive!!