I had been having problems getting full disengagement of the manual 3D clutch. The internal throttle turned clutch didnt have enough mojo to move the the short couple in the system. My for now, solution is to more than double the arm length from pivot point to lever end. Bit of welding and support fabrication which I admit doesnt look very good; but I think I have something that will give me full control over the clutch. I can now move it with one finger. !!!