Ok, I bombed London, but the only RAF pilot on at the time never tried to stop me. I took a south-north rout which avoided more of the puffy ack, but took a series of pings over London which caused a fuel leak. All in all, the puffy ack is still worse to fighters than bombers, and it shoots at your 109 even when radar is dead and you're above the cloud layer. Avoid those ports!