I usually try to train for a certain event, and use the appropriate gear. In the Spring, it was a single stack match (load 8+1). For most of the Summer, it was our state IDPA Championship (9+1), so I was using a 5" single stack from IDPA gear, even when I shot IPSC. Now, I'm "gearing up" for USPSA Area 1 (10+1), so I'm competing and practicing with my IPSC race rig. I'll still shoot four or five different guns per year, but I try to focus on preparation for specific events, to build consistency.