Hey Rex Ross I actually did sand the bridge down really good and then sprayed it with the rubber spray.  It is working better cause now all my tanks can make it across except my Tamiya Tiger.  My 3 Heng Long and even my heavy(16lbs) Taigen Tiger made it up it no problem but the Tamiya Tiger just spins no matter what speed you hit it at.  I might try spraying another coat on it with some sand mixed in.  I'm going to think it over and try to figure out something.  Till then here is a short video of some tanks crossing it.

http://www.youtube.com/watch?v=TezUE...9z3QQFvel_xzqA</p>