Quoted from ezeltmann:
Prepare for bounce-outs with a cliffy , unless you are also able to perform the "bending of the bracket" . Ultimately, I went with no cliffy.
I just fixed this on my game with Cliffy installed by removing the blue rubber stop. I could probably cover the metal scoop with something softer (but not bouncy!) to protect the balls, but I'll replace them periodically anyway.
My bounce-out percentage now seems to be about 10%. Honestly. I've actually taken down my CL ad to sell the game because I want to see what I can do with the turbo boost hole actually working.