What buttons help catch Pokemon?

Press A and B repeatidly

It is said that with a great ball, when the ball "hits" the invisible wall before dropping on the poke'mon, you press and hold down the L and R buttons simultaneously as soon as it "hits the wall."

Then, the moment it hits the ground you hold down B as well. This is supposed to give the great ball a 85% chance of catching the poke'mon, better then an ultimate ball, but worse then a master ball. Even if this doesn't actually work, I seem to have a fairly high success rate.

(I also do the same thing with ordinary poke'balls, but it doesn't seem to work)