I agree with SFF. Since you're using custom supports, make some sort of custom cartexture. The Flag one would look cool, but I think a tree-wood type of cartex. would look cool too!
The E-brake problem is fixed, no more crashes. I'm thinking what to do with the texture, certainly no american flag, NEVER! I'm european, so if any flag goes over, it will be a Dutch flag. Maby just the name on the front, if anyone can make me a very cool logo.
Hey - I really like the support work - looks very nice, but I have one suggestion - where you have those really steep bankings and there's no rail, see about putting some sort of reinforcement on the ties so it's not sticking up in the air without a railing - there would be something connecting the ties on a real coaster... If you don't know where/what I'm talking about - the last posted pic shows a perfect spot... Everything else looks great!!!