Don't give up on that 642. I dry fired mine quite a lot to smooth out the trigger. It has the CT Grips. I took it to the range for the first time last week to try it out. Here's a pic of the group at 30' shooting Fed. Hydra Shock, 129gr. +P ammo. The spread is 1.75" CTC on a 4" bull. I only shot one cylinder of the Hydra Shocks because of the cost. Maybe I could tweak the laser sight a little more but I was satisfied and didn't want to waste the ammo (translate to: I'm cheap).