I never cared for the .40. I consider it a totally redundant caliber. I love 1911's, but the 9 MM is completely adequate with good ammo. In today's crazy world, extra capacity is nice. I keep remembering that family in a van a few years back that got attacked by that motorcycle gang on the Interstate. That could happen to anyone. That is when I started carrying my BHP 9 with extra mags all the time over my .45.