Thanks for the welcomes and the information. I watched some videos on proper grip. Mine was not even close. The dry firing practice paid off. I went back to the range on Friday, and the change was like night and day. I'm not good by any measure, but I'm shooting consistent groups now. I'll keep practicing and going to the range.
Is the o-ring or eraser method better at protecting the firearm than snap caps? Also, I bought a super cheap laser. It won't hold zero well, but I've found its useful for dry firing. I turn it on and see how little I can move the laser while pulling the trigger.