Clutch Grinding
The height of the fulcrum only affects where the fork is gonna sit in the window,after the departure is set. If the fork sits too far back, it will not have enough travel to achieve sufficient departure. If the fork sits too far forward then it is possible to over travel the TO and push the fingers into the disc.
Like I said earlier, you don't have to push the pedal to the floor. You only have to push it far enough to disconnect the engine from the transmission, so you can shift the dang thing. And if it does that at 50% pedal travel or at 80% travel it makes no never mind, as long as it gets done. Any more pedal travel than that is not helping, and if this applys to you, then stop doing it! lol.
To help you with the fulcrum height choice, I have the shorter one installed and it works perfect with my CenterForce and any disc I have slammed in there.