cj,
I can't say that I have any trouble with controlability, but I do tend to cut up my hand with the wood grips if I shoot more than 40 or 50 rounds in a session. I tend to stick to the 38 special 135gr Speer gold dots though I have found the 135 gr magnums to be manageable and are what I currently stoke my kit gun with. 145gr Silvertips are another matter entirely and should be avoided in the AirLites.
Amazingly I tend to find the N-frames more abusive than my J-frames. I think it has to do with the higher bore axis and thus more rotation within my hand. Like I said, the 625-10 is a BRUISER and stoked with silvertips the 327 isn't much better.