Just installed my TrekTop, and it turned out to be quite a trip. Right when it came in I wanted to install it, so I busted it out, got all pumped up, and got after it. I didn't consider that it was only 50 degrees out. This thing barely fit, and involved some serious stretching. When I was almost done, I couldn't zip down the rear window completely. So today, I went out, tried to finish the job after letting a 60 degree sun beat down on the top for a while, and was able to pull it off and fix the rear window. Has anyone else had this problem? Does the top become easier to take down and put up? Also, how many different variations can be done with this top?