I don't understand. Why would one use a reversing Y, instead of just using a normal Y and doing what Minnflyer suggested, running the control rods off of the same side of each servo, insetad of opposite sides. This is the way I've set up ALL of my flaps, and it works great. Reversing Y's are horrible. Everyone I've ever owned isn't worth a crap at holding center. You will be forever adjusting the pot on it. Even with them installed, it only requires you moving the control rod to the other side of the servo, and (possibly) lengthening the rod just a bit. I dont' really see it being that big of a deal.