The rear band has a cushioning set up which is supposed to be for driver comfort. If the bands are set properly, the possibility of overlap is very slim. There is a spacer that can eliminate any possibility of this.
That's right it is for comfort and just like other design decisions they made for comfort it can cause a problem in a performance application if not set up properly. And you might be right that the chance of it overlapping might be slim but there's still the chance. I had one that overlapped terribly (as stated above) on the 1st to 2nd shift no matter how the rear band was adjusted. The only way to correct it completely was to install the spacer to eliminate one of the springs.
