I just picked one up this weekend, and was playing with it tonight. Pretty basic to use, but i can see how it will be very usefull.

For instance, you can set failsafe in the servo itself, and no longer have to program it in the trans.

You can widen the deadband of each servo used ganged to one surface, to allow a bit of "play" so they do not fight each other. No need for multiple matchboxes!

If you have two servos (for instance on elevator halves) mounted on the tail and Y'd together, with symetrical linkages, you can reverse the direction of just one servo (not possible from the trans) and do away with an in;line reverser.

Adjust the speed (slow the servos down) if your radio doesnt have that capability for flaps, or brakes, or whatever for scale speeds.

Its a great little "magic box" for sure!

But you certainly dont "need" it to use the servos. Just adds to the usefullness.

Andrew Coholic