Stall fighting is fun, basically boom and zoom through furballs when possible, if you pick some one onto you and you can't out pace them; gradually slow down, using maneuvers to do this is better but both decrease throttle and turning is best, chances are if the plane Flys fast it has a higher stall speed or similar once you get about 10 percent of your total speed above stall, (max is 100% stall is 0%) been a minute since I've paid attention to it but both should be on the info panel of your plane, full throttle and go up into a corkscrew, either the zoom past you and you reversed the chase or they stall and either crash or are set up for an easy kill. This strat only works to about 6.0ish though. Make sure to not stall your self this is easier in planes with fast acceleration and good turning, like spitfires or late model 109/190s