[jhv48]

What has been previously stated is true. If master and slave are appropriately matched, then it is the leverage of the clutch pedal on the master cylinder. My SPF has three holes on the clutch pedal to move the rod up or down. Moving it up reduces clutch effort but also shortens the stroke of the master cylinder. Moving it one notch down increases both the effort needed to depress the clutch and the length of the stroke..

You need to balance the three parts correctly in order to implement smooth clutch action. Continue your efforts in this area and you will solve the problem.

If you move the mounting point up on the pedal, you might need a larger master cylinder in order to pump enough fluid with the shorter stroke. Like I said, a balancing act.