[ksafin]

Hints? I can go on and on and on!

But here's some main pointers..

1) Axle collars get stripped set screws all the time. Have spares.
2) You'll be surprised how many axle hubs you'll use- they're very useful. Have spares.
3) Depending on how you use motors, you may need more. Have spares if needed.
4) If you can, switch the connector on the battery for Anderson Power Poles - much more secure and robust than the initial connector.
5) Look into new wheels, it's a great addition to this years rules.
6) keep your wires neat - I can't tell you how many times that's been a problem.
7) Have a 9 volt battery so you can test some basic mechanisms without having to program it or annoyingly touch wires from a 12v; unless you have an easy way to do so, in which case, by all means!