Right now, I carry the same Glock I've had for the last 15 years, a 22. I'm going to the Glock 19 soon. I've alway like the compact size, but until recently I didn't want to make the move. I'll have the same capacity, in a smaller frame that will be a little easier to carry day to day. And honestly, when your talking carry ammo, I carry Federal Hydroshocks that will not change with the caliber. I'll miss my .40 (except for range days of course).