No tracers is the best way to go.
Almost everyone in the MA looks back and sees a d500 plane manouvering on his 6 but not tracers, so they try to keep their speed up or extend.. and that means flying straight or without much jinking.... and if you got plenty ammo (P-38!) you can get some nice kills which basically put themselves on the silver platter.
Plus it helps when the other guy really didnt see you sneak below him and missed!
His first indication of you will be *ping* *ping* *CRACK* *BEWM*
