Ive had a few issues too..
Obviously run a cap, essential.
Mounting the receiver on velcro cured a cut-out type problem off big jumps - think theres a post about this problem on racechat..
The module in my ko universe is a very poor fit anf caused problems - i have now wedged it with cardboard and bent the pins a little - seems to have cured it.
Everything currently running ok

for the time being