thanks for the info, I now realize since it looks more attractive on a coaster, why didn't they do this on older coasters? Now that i know a chain can bend so tight inside the spine, but older rides have that giant gear wheel/obvious platform at the top so that it's spread out more.
I was wondering how Orion's and newer B&M giga coasters' chain lifts operate. I look at Diamondback and can see it has a square platform at the top of the hill with a chain trough that returns to the station. Orion's just goes up and disappears somewhere. Does it travel back and go down inside the blue track? seems like a tight fit.