Ok, I have a jato and just bought a brand new hitec hs-5645MG J servo. I jsut got it in the mail today and connected it to the receiver and nothing happened. Then I went and read the description again and said, "Hitec Digital, Super Torque, Metal Gear, Programmable Servo that will work with Futaba-J type radio systems. Does that mean that I have to get futaba-J radio sytem for this servo to work. When it says radio sytem, they mean receiver and radio right. (I was planning on getting a new radio anyway). Thanks, I really really appreciate any suggestions/answers I can get.