Adjust the pedal linkage so the MC returns completely to its fully released position when you're off the brake pedal. There is a relief port at the extreme rearward point of the MC piston travel which must be uncovered to allow pressure to release in the brake lines.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!