[Kevan]

Rollout...a 1/12th racers favourite tuning option is the quick way to repeatable performance as tyres wear. Although not as critical as on said 1/12th as they go off-the-pipe quickly as the rear foams wear (even between race heats) but it's still useful to know about for your slot cars.
My favourite rollout app is RC-FDR Rollout Free (android) but you may have to double the sizes as its not written for 1/32 cars but works great.