Noisy servos. Reject return
Their servos are very noisy. I ordered a few models . The X20-1806 servo is as pricy as the PowerHD GTS-2S but powerHD is super quiet. They declined that is an issue after I send them the video. They said I must pay the return shipping fee to return them , which were around $100 meaning that I get no refund for a return .
Lucidgemstudio