Just installing mine in the car now and getting a bit of a weird problem.
Wired it all up and set the transmitter and throttle points . - All worked ok (well except for the car going backwards, but that was because I installed the diff wrong.

)
The problems occur when I try and program it.
Basically when I use the programmer, it does something to the settings which makes the car apply a short burst of about 50% throttle every time I turn the car on.
It appears to work fine once the receiver has powered up, but is a bit annoying.
Resetting the speedo cures the problem, but obviously loses the speedo settings.
Any suggestions?