Jeff explained it to me once too. He said that it is mostly in the trains. MF uses trailered trains and Magnum and most Arrow coasters don't. I'm not going to go into too much detail what this means, but basically in a trailered train every car can do a different thing. (one car can be upside down the other right side up..) Although this isn't very well emphasized on MF, B&M uses it too. This is VERY obvious on Raptor and those in line twists... There's more technical reasons why Intamin's trains are better but that's one main one.
Intamin's trains are much better and no doubt their track is a heck of a lot sturdier. (NO supports in the lagoon, it just spans right over it...) It is definately a combination of the two, they work together to give you a rough ride or a super smooth ride.
*** This post was edited by MFistheBEST on 8/11/2000. ***