Quoted from Briks-707:When I bought my Hot Wheels (NIB) I had to turn down the flipper strength as it was way too powerful at the default setting. I was getting crazy amount of air balls even with the machine leveled properly. Maybe some operators are turning it down too much. Out of the box the flippers are too snappy for Hot Wheels layout if the pitch is at or near factory recommendations.
I recommend putting the flipper strength back to stock and use better foam backing for the car and RPM standup targets instead. The gray pads API has on the targets is way too soft. Stiffer foam makes a world of difference and stops air balls completely without giving up flipper strength. IIRC, this is what I used:
Dixon, CA
