Well, I might end up with a 6" Luger someday, but this guy is going to stay in the 4" configuration. It just got it's barrel 15 minutes ago.
I just fired it - 35 rounds. My wife shot it too. Very, very fun gun. I love the .30 Luger cal. If it's written in stone that you can't have just one, the next might be 6" in 9mm.