Wouldn't really surprise me if it did as far as claims go. Combine a relatively target rich environment, long service life, and the fact that if a 109 bounced a formation of b17's it could easily have 50+ gunners all shooting at him as he makes his attack. 50+ gunners who would try and claim the kill if he started smoking or bailed out. I don't know if it's true or not but it sounds plausible, as long as you look at claims and don't cross-check against admitted german loses from the same period of time.