I'm a fan of DA revolver's but don't shoot them as much as my rifles. For carry I like low recoil and small. Mine is a Shield 9c, wouldn't want one in a 45 ACP, I can imagine the recoil! My 9mm holds 8+1, no idea what it would hold in 45. I suspect the 45 is a larger frame? Probably heavy too. I gave a carry gun a lot of thought and got the Shield 9c and love it for what I use it for.