Remember to start at the beginning;
Is your upper rotor tracking properly? That's a HUGE deal. IF it isn't tracking, adjust it.
Does the flybar run true without vibration?
Does the lower rotor track true? If not, follow the tips in the CX posts to get the blades to track. Boiling them will probably make them better.
If you spin just the lower rotor is the balance good or does the heli shake?
Of you spin just the upper rotor is the balance good or does the heli shake?

When everything that spins is true and smooth, THEN worry about getting the pot adjusted. If you use the pot to compensate for a chipped blade or balance issue or tracking, every time you change a blade or anything else, the pot will need to be adjusted again. Use the pot to clean up a very very well adjusted helicopter and you won't touch the pot for the next 50 flights. If the rotation changes after a mishap, it's 90% likely that the problem is mechanical - not the trim pot.

I hope that makes your life easier.

Soloboss