Heres a bit of a debate: When I paint and cut out a new body I make it basically bolted on the chassis, barely make the post holes big enough for the posts and use foam and big clips to keep it under constant tension and never move, but I have seen other people do the exact opposite, and enlarge the body holes and have the body sit loose on the car. I can see how that would be useful if the car wasn't as stiff as they are today, and in the distant past it was easy to tweak a chassis, but is it really worth it today?