Planning a trip October 5 -11th, with my kids. The problem: my son has a problem with his legs not bending very much at the knees. Basically, if a six-foot tall guy has to bend his legs to 90 degrees or more, my son won't fit. Wondered if anyone had information on which rides are the tightest fit? Especially worried about mummy, MIB, Hulk, and Back to Future. Any and all help and advice is greatly appreciated!!