Very interesting epower, I've had similar experiences flying with Esc 3 for a while and it wasn't just Guynemer, it was all of them, all getting in front of you.
Apparently Guynemer wasn't a team player at all though, even on patrols, he'd just fly away from his wingman.
They weren't all like that of course, both Edward Mannock and Linke-Crawford the Austro-Hungarian ace used to shoot up an aircraft, knowing it was about to fall and then move away so that an inexperienced wingman could come in and finish it off.
Haha Adger, remind me never to be in the vicinity when you're in the air, "what are you claiming today sir?"....."three Albatros, two SE5's, 4 Cows and a bloke in the bar".