First off i'm new to this site and to arrma. I have a servo question. Should I put a screw in the servo savor or is that a no no. Seems like we just barely touch the corrugated pipe at the local rc track and the steering gets shoved to the left or right. in fact this happened and I tried straightening the wheels and I some how stripped the servo gears so I bought a metal geared one. Any advise would be great.