Stellar, I have the #39 Slot It Gulf McLaren F1 but an angle winder which runs well on our club’s track, I’ve replaced the stock plastic spur with 1 tooth larger ergal to enable a bit more speed on the 22 foot straight, 16 and 14 foot straights. Our club allows magnets (as many as the car will naturally hold, i.e., only in the areas MADE for them on the chassis) so, added a C7 at the rear and use Slot It’s 51mm hollow axles, CB Design Insert 17X11 rear, 17X8 front and trued the car’s original wheels to fit inside giving a stock appearance (all the racers at our club do do it to keep the stock appearance, so, nothing new there) with Quick Slicks on the rear, 0 Grips front (rear and fronts trued) and finished by lightly sanded the motor pod and chassis to remove flashing and allow movement on both with the body BUT had not thought about flattening the chassis OR using Slot It’s wood track guide. Fantastic videos and tutorial, I’m both amazed and grateful
All the best.