I've been afflicted with another "senior moment." My head refuses to decipher which is an S connector, and which is a J connector (Futaba, I think) and whether or not Futaba and Hitec are compatible with each other. My old steel trap mind is still there. It's just that some of the springs have gotten rusty. Tomorrow it'll all come back to me, but right now I could use a little nudge. Thanx.

F-89 Driver,
You can use any brand servo that you want, just as long as you get the wiring correct. Please refer to the attached diagram for the wiring of the major brands of servos.

Hope this helps

Ken

And, if your rx doesn't accept the little tab found on the futaba servo connector, then simply cut that tab off--wha-lah! Problem fixed...