Well, took out a heli book I bought a while back, and even though it was written 12 years ago (they stated that electric helis do not have the power to be worth the money - man, how that has changed!) I picked up some good info.

When adjusting blade tracking, always try to bring the high blade down, not the other way. Also, if you want to bring your head speed up for more gyroscopic stability, adjust both blades to have a slight negative pitch - say, 1/ 2 turn at a time. That way the head has to spin up a bit faster before it reaches positive pitch.