i agree with all the OAT people on here.
I would get your self a comet, leopard and a teebird and practice in a field with those.
on a flat release you should see 0 flutter and have them do the following.
leopard - start straight a little high speed turn and then a little fade back.
teebird - start straight , stay that way and then fade more then the leopard
comet - just practice throwing this on all lines until you can get 0 flutter.
discing down was the best thing to happen to my game, EVER. i can get WAY more distance since i corrected my form.