I have carried 2 defender-sized pistols and wasn't able to keep from limp-wristing them. I won't blame the pistols. On the other hand, the commander size is the best of all worlds. I recall a couple of years ago I couldn't understand why peple would prefer that "big" commander when they could have the "teeny" defender. Well, the Ultra/Defender is not really the small and the Pro/Commander is not that big.
I have a bobtail commander as next on my list...
45acp, 40sw, 9mm, 38spl, 380acp, 22lr
12ga, 5.56, 30-30win
2 Chron. 7:14 Christians must seek His face