Any help for a relative newbie please? This week I've discovered a bit of an issue with a Fly Williams F1 car. The motor mag is just too powerful on the temp track I have set up in the garage. The track is a Ninco/Policar mix and most of my collection seem fine but this one is almost undriveable. The mag pull is so strong it's actually making the car slower! It runs fine on wood but I'd like to be able to run on plastic without major mods - anyone else had this? My first thought was a bit of metal across the base of the motor insulated from the track with black tape and fitting higher profile rear tyres but there must be a better way, right?