Baseline: glock 35 gen 4 that I currently shoot in local 3 gun matches. Tactical division currently and I have no desire to go into the open division just for a simple handgun mod like the ones I am considering below. I want to remain in the least customized division. 9mm Conversion barrel: Any impact for 3gun/uspsa/idpa? the added capacity would be nice for sure. 9mm conversion barrel threaded: any impact? Flared magwell: 3Gun (no impact) what about IDPA/USPSA I have found a few ranges within a reasonable drive where I might be able to do some sort of action shooting nearly every weekend, but it would mean trying a few new things and trying to streamline/maximize my gear. 9mm is the go-to choice in everything I have seen and last week I had to reload the handgun on two stages because I am shooting a 40cal with 16rds vs a 9mm with 21 rds. reloads cost point! Thanks, as I go through this I will ask more questions for sure.