I have built my own switch, which works fine with the 72 Hz pules put out by the receiver.

Found out that with the Wotty needs to have the enable channel connected to a different group of channels than the steering and throttle. So Channel 1 for steering, Channel 2 or 3 for throttle and channel 7 for enable works fine.

Very nice to setup with English words for all the menu items, rather than TLAs. Ive set it up with different steering rates (including exponential) for the steering on a three-position switch, and different rates for the gyro, also three position.

Used it at the champs - worked perfectly.