I had a feeling it had something to do with Combat Trim. You know, its funny, almost eveyone says not to use Combat Trim, so I stopped a while back. In the course of talking to both Shane and Leviathan, I found that they both use it, so I turned it back on. I really cant tell any difference one way or the other while in combat, only when having to trim in level flight. While in a fight I dont feel any difference, but I also rarely use flaps, and if I do its only one notch, so maybe thats why.
I guess for the sake of my own curiosity I will turn it back off tonight after flying with it on for a while to see what difference I can find.