Look, what I said was, and I think Rcpilet is saying the same thing, if you are setting up a sport plane and don't care all that much about precision and don't want to spend the money, by all means get a reversing Y.

I used to mix all my multiple control surfaces, but after discovering the Matchbox, I am using it. It just does much, much more than just reversing and a cursory setting of the amount of movement that the reversing Y does. I use them on most of my twins and a triple. The triple was so easy to set the throttles, it was hard to believe. I set the center one as normal, then blipped the outboards in with the Matchbox. Done. I am getting ready to set up a Harrier 3D .46 and will be using one on elevator.

As RC electronics gets more and more sophisticated, we are getting a larger difference in the top end and low end equipment and also in the additional equipment available. Are digital servos necessary? No, but I like them, especially on rudder for the holding power. Is a Matchbox necessary? No, but it certainly makes dual elevators or twin engines easy to set-up and many people will say that it or something like it is required for multiple digital servos on the same surface. It gets down to your personal preference in precision and what you want to spend on the hobby.