All I see is another point of failure.... Whether you're slipping at the front of the belt or the back makes no difference. The only 'benefit' is that if you want the front really loose, you can do so without loosening the rear as well....though everyone I know is trying to get MORE power to the front, and no matter what your front slipper is set to, you'll still slip at the original slipper plate.

Good job for thinking outside the box...A for effort.... C for implementation....

Next thing you know, we're going to see someone come out with an inner clutch basket....you know, because there is SO much room to move the spur farther out on the shaft...