Thanks for the quick reply, Lonnie.
Hmmmm. I was using a brand new mag - MecGar, I believe... It sure didn't seem week to my thumb <img border="0" title="" alt="[Eek!]" src="eek.gif" /> ! I'm not saying you're wrong, mind you, 'cuz I don't know. Has this happened to you? I guess if that is the cause, another mag is in order.
I was thinking in terms of a recoil spring or weak load, but as I say, I'm not smart enough right now to know.
Thanks again.