I am planning my layout that will involve two trains, one being a Polar Express train. I know this sounds ambitious, but I am an artist and think I can pull it off. I want to have a dip in the track and do the scenery to evoke the illusion that the train is bursting out of a frozen lake. In my plan, the Polar Express would be on an upper loop with the lake scene at the back of the table (~10' x 5') and cross the front on trestles. The lower layout would be a yard engine doing switching, etc. with a loop, too. Is it possible to mate fastrack with something flexible. Otherwise, I could conceal a grade in the fake frozen lake I suppose. Thanks for your thoughts.
Ted