I am sorry I didn't jump in about adjusting the clutch pedal IF YOU had the "effort reduction linkage"
You are right, If you get that toggle out of kilter it will go backwards or lock up solid.
I have posted about that linkage setting before about getting the initial angle correct.
http://pantera.infopop.cc/eve/...361010756#5361010756
Have you measured how much stroke your slave has?
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