One problem with a B&M giga is the chain lift. Having a single chain for a 300 foot coaster is just to heavy and hard to move and I dont think it will be able to use two chain lifts, like steel dragon does, unless they completly redesign their track, trains, and braking system. If you look at there rides, beside for the trains, they really havent changed that much over the years. The track, braking system, friction wheels, and lift are all basicly the same on all of there coasters. The only new thing that they added was the magnetic brakes. I think the whole giga stuff is just to tease us. Unless they dig a huge pit and have the coaster drop 50 feet under ground I dont think it will be a giga.