Tip #4
This is an old one but because of the way the shocks rotate they sometimes have a tendancy to unscrew the mounting bolts. The 2.0 buggy uses small set screws to hold the bolt in place, but you can also add a second screw to one of the unused holes to hold the bolt in place. This is the setup on my Losi 2.0 truggy.
Tip #5
Low profile wiring. The stock ESC wires come straight out of the bullets and can interfere with the body on some buggies. But to have them come out at a 90 degree angle just drill out the little hole in the side of the bullet and solder the wired into this hole instead.
Tip #6
Radio antennas can take a beating, the little rubber caps usually don't last very long. A 2.4gig antenna can be much shorter than AM/FM antenna, but they can stil llose there caps. Take some shrink tube and place it over your antenna wire and antenna tube, heat it up and your good to go.