Hi, i am useing the DX7 on a boomerang, and a 30% Extra with a zdz80. I have put many flights on both, and can only say that the radio has performed perfectly i use 6volts on both. I only use hitec 645mg servo's not the servos that came with the deal however after the bad reports about them. I have had trouble in the past with glittiching on my Futaba gear thats why i swapped over to the DX7.

Regards

Paul