Power Disc Brakes not working on hard stop?

Well if you're sure everything is correct and you want to tell me how to set up an adjustable proportioning valve, its pretty hard to know what to suggest beyond what I posted above. Go through each part of the system and test and check.
Between the FSM and the Master Tech Conference there is plenty of info.

Yes I am sure I know what a factory fixed caliper system is.
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and how they changed over the years.
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