Using the Giant Cod Radio Link set. Its been nothing but trouble, partly because they're built very badly and we got ours 2nd hand....

The mechanism on the right stick seized up in vertical movement, so I removed the horizontal mechanism which freed it up (not sure why that helped but it did) then when I was testing it the other day the stick stick just snapped and dropped inside the controller. I opened it up to find it had snapped clean off it's shaft. I was just testing the drive, nothing vigorous. Got some super glue on it, hopefully that'll hold hold enough to last the competition!