This year was my first year shooting USPSA and I had a great time and met a lot of new friends. I shot a Kimber in the SS class and will probably shoot that class most of the time. I would like to branch out into another class and think production or limited might be the next step. It is hard to tell what everyone is shooting at a match but it seems most production shooters are shooting Glocks with a few M&P's scattered in the mix. What can you tell a new shooter about the favorite production guns used and why? I have never shot a glock or M&P, but I have shot a CZ and Ruger SR9. I hope this doesn't open a can of worms, but why is the Glock so popular?