justin, i'd definitely say, ditch those plasti blades, oh, which ones are you using btw? flat bottoms or sim? get some woodies, simmetrical ones. they'll make your headspeed higher.

i think you've got your dx7 already? use it on teh blade, make the throttle curve something like 0, 50, 80, 100, 100. oh, but set your throttle ATV first, because max throttle (when the red led comes on) is about 70% (on my futaba 7c anyways). but really, use woodies. i have a set of cf blades and they're heavier than woodies, but they are super smooth and tracks very well, so i'm using them right now.

i guess your using flat bottom plasti blades? those will creat more lift at a lower headspeed and stall your motor. don't use them.