Will a Ruger P89 Slide and barrel fit on a Ruger P90 Frame? or Vise Versa? How about a P94/944 (40 S&W) will that slide onto either of the other frames or vise versa? Taking into account the same decocker and saftey setup. (e.g. a P89DC on a P90DC, or just the P89 DA on P90 DA). I have yet to find a definitive answer. I have a Taurus PT-92 and a Taurus PT-100 and can swap slides around and easily go from 9mm to 40 and back, just swapping my slide, barrel, and magazine. Could I go from 9mm to 45, and 40 or any combination in the Ruger platform? If it does not work simply because the magazines don't work that's fine, I can fix that. Thoughts anyone?