Mine got small cracks after around 150 BP swings. It was just a demo bat though so we kinda abused it. I don't imagine too many people take 150 swings in a BP session with 44/375 dudleys if they don't wanna end up with small cracks in their bat
All that being said, I agree with all the above posts. It was hot right out of the wrapper, sweet spot was nice, love the slight end load feel, and after it developed those cracks they didn't get any bigger for a very long time...probably 5-6 hundred more swings all with those same dudley 44/375's.