I am glad this info is useful for some of you. I learned a lot from these forums, the rest from asking questions at the track and a lot of trial and error. I am not saying these are the best solutions, just some ideas that work for me and may work for others.
More Tips:
Losi uses some super strong loctite on the wheel nuts from the factory, and for a good reason. The Losi wheel nuts seem to want to fall off at the worst time (during a race). So I found a couple of things that may help. Here are a couple of sets of Wheels nuts that will fit on the Losi hubs. The red ones are from ThunderTiger and have nylon locking rings in them. The black ones are from HPI and have serrations in them that help hold them on. They are relatively cheap, I use the ThunderTiger Wheel nuts myself and they work great, the nylon will wear out eventually, but like I said they are pretty cheap. Here are the part numbers: TTRPD1865 (ThunderTiger) and HPI87519 (HPI).
