I recently installed an EVR slipper in my Paul Smart but something is not right. The clutch will not disengage (meaning it is very hard to shift). It is also nearly impossinle to roll the bike in first gear while pulling the clutch lever. I can feel that the clutch is still engaged. I measured the clutch plate stack height and it is spot on. I have installed the same slipper in my 1098 without any issues. What could be causing this? Any help would be appreciated.