I ran M4's on both cars, a set will still last you a full day, if you were going for optimum though then glue two sets up and scrub them both in practice.
Don't despair if you haven't cleaned release agent off the tyres but it really is the thing to do, I mean why wouldn't you.. (unless you forget like me
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Wouldn't really use activator but if you have to don't use it immediately' let the glue start to set a little first.
Use tyre bands/elastic bands to hold the rubber down while the glue is drying, careful not to sprint glue in your eyes.
You don't need much speed for the big doubles, particularly the first one. Dirt is all about throttle control, put a slower motor in, probably an 8.5.
Enjoy! When you hook it up it's really rewarding
