I've been flying the 38J pretty much for the same reason AKAK stated. Despite the lack of boosted ailerons and dive flaps - you only need the latter if you really screw the dive angle on your attack run. As for the lax rate of roll, plan your attack so it isn't a factor.
But the best reason for the 38J for me is the paintjobs. I don't know about you, but running in NOE with that black paintjob is just screaming "I have become death - in a pimpass ride." If the L had some dark paint jobs that were useful while down low instead of reflecting like a discoball of please kill me, i'm easy - i'd use the L a bit more.
But IMO, there is nothing better then screaming along in a black cok of death hugging the tree's and tearing up the rear.
Wolf