I really couldn't say. The only diference I noticed were on the steel roller coasters. Both Riddler's Revenge and Batman: The Ride at SFMM have ladder like bars sticking out of the inversion portions of the track. Don't know why though. It must be local saftey law.
Plus Goliath has those ties across the track on the steep and highly banked sections.
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Jes
Webmaster, Jes's Roller Coasters
http://www.jesms.cjb.net