My sincere thanks to all who have responded. I feel very welcome on this site and forum, much as I've felt on the GlockTalk site since I joined there in 2005 (?)
I do wish this site had a 'like' button to quickly express appreciation to someone in the thread. Not a big deal, however.
I've always attempted to shoot my CC guns in competition, which is easy with Glocks because I can shoot double stacks of all sizes in a division that allows me to load as little as 9 rounds to start (CCP division) or 11 to start (SSP division). With my little CM9, I'll have to shoot with just six in the gun at the start with only 6-round reloads. No big deal except I'll have an extra mag change at each stage compared to most of my fellow shooters. I'll never actually 'win' a match under those conditions, but as I've often said, "I'd rather win a gunfight because I've been competing with my CC gun, instead of winning a pistol match with a gun that I wouldn't normally carry."