The new Fit Tower™ is more of an evolutionary change, not revolutionary when compared to the former Tower. Both Tower's do pretty much the same thing, it's just that the new Tower does it a little more smoothly and with less wobble.
The new Fit Tower™ is a couple inches shorter than the previous Tower, but most of the other dimensions are the same. The base of the new Fit Tower™ is also shorter which means if you break it apart it will easily slide underneath most beds. This was not possible with the former Tower. We've also added numbers to the locking holes for the adjustable bar for the new Fit Tower™ so that you will know precisely where to lock the bar in place.