well gents-thanks for the help. I found one of these online and going to try it out. worst case I'm out a couple bucks on shipping back if I don't like it. its got a retention screw and thumb break. might be overkill but I don't like my sidearm easily accessible. from desantis this is made for the model 640 and 642. I actually looked at one for another revolver at cabelas today and the thumb break is setup at a cant to go over the area the hammer is but its shaped different than a hammer holster.