Well thanks for all your help everyone. the balancing problem is fixed. i brought the gears closer together. from the tail rotor gear to the main shaft gear that spins the direct drive. now there is no vibration in the tail anymore. but still pulls to the left. the tail does. I guess trimming needs to be done now. I woudl have just now but the low battery alarm went off on my transmitter so i better not risk it. If anyone has anymore advice to help with anything im all ears. thanks for all your help.

Oh what is cg im sorry im truely really new at helis. still learning everything. thanks again