You can do whatever you like,
Cutting the rear allows a fatter belt to fit all the way down to the boss,
If you're using a thinner belt after this mod no big deal. Just add fiber washers between the ramp plate and vari
But to get the belt higher you have to cut the tjts pulley face to be more steep. I went as far as possible and a lil too far recently, making holes. I'm gonna fix it with that zinc brazing rods and recut the cheek.