Howdy DavidC.I don't think you should have any problems with the 125's.Your set-up is very similar to mine.I shoot a Martin Cheetah,29"draw @55-60# draw weight.I shoot Beeman ICS 400 carbons with 100 grain broadheads.I'm not familar with the PSE's,so I don't know how the spine compares to the Beemans.I would GUESS that you could probably go a little lighter and maybe pick up a little more speed without hurting anything.All in all,if it works,I wouldn't mess with it too much.Good luck,and good huntin'.....whackman