The bottom of the chassis is alitlte messy, and most of you racers now. A smoother bottom always means faster. Awhile back I bought a complete skid plate of ebay for like $5. ITs nothing special but I think it may do the trick to clean up the bottom and make it smooth.
Also got my kicks all put together. Clay boas, with 3 stage racer edge foams, and 23mm Pro-line 1/2 offset wheels.