I have the classic and without the extra framework I can remove the top and take out the header bar and fold it and store it in the back(jku). It will roll back to expose the front or all the way back to the rear.
It does flap a bit when the windows are open. but for me the ease of removal and the ability to store in the Jeep were the selling points.
Yes, ease of taking my top off is a big plus. I like the look of the fastback, and riding around without a bikini top can be brutal. Thanks for all the info. I think I'll be going with the trektop. Hopefully won't regret it this winter lol