set it to 0 RPM. Also if you're not pressing the gas at the same time as the clutch it shouldn't be doing anything anyway.
The normal rev limiter will kick in. This is what solved my problem. It may be different for others. YMMVI set mine to 7200 rpm.
I have had issues while driving spirited. I rest my foot on the clutch between shifts. Sometimes this is enough to trigger the clutch switch, and FFS. This makes the car jerk violently, so I have set it high enough to stay off. I do not set it too high over the rpm limit just in case it gets activated.
Honestly not sure if the normal rev limiter will kick in over the FFS limiter. I believe it does, but not taking that chance.
Yes the switch is at the top of travel, not at the bottom. At least according to Cobb. I will see if I can find the post.btw, the clutch switch is nearly impossible to get any input unless the pedal is almost to the floor... they arent variable sensors like a throttle position sensor, they are on/off and dont engage until on the floor for safety of you and the drivetrain.