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, .40 S&W, 9mm, .38 Spl, .380 acp, 22lr
12 gauge, .223/5.56x45mm, 30-30 Winchester
2 Chron. 7:14 Christians must seek His face