Side-by-side, I find American Eagle 158 grain SP (which is supposedly full power) more pleasant to shoot in my Trooper than the classic .357 125 grain load. It's very "snappy." Unpleasantly so. I think I will only shoot it in 6"+ revolvers with underlugs and carbines from now on.
I was expecting better felt recoil from my weighty mk.III. The 158 grain stuff was not too bad at all.