Now, don't take this personally, but I think it's kind of foolish to put an RX 18 in that tank. There's so many boards that are so much better available and they don't cost that much. You could even go with the V3 from Imex and the whole system is well under $100 and you'd have much better motor control and proportional speed on your turret and many other advantages. In fact, if you wanted to use a taigen V2 system I can send you the mfu, the transmitter, even an aftermarket board to get rid of the track recoil, for next to nothing. For just the MFU and the transmitter, I'll give it to you for $15 plus postage. The anti track recoil device cost a little more so if you wanted the V2 unit and anti track recoil, we can work something out for that. The point is that you can put much better Electronics in that thing for very little money. The rx18 is pretty much the bottom of the barrel anymore. I would get something good to put in there.