Hey RRR, for your info, I followed the parts recommendations in that thread to a 'T'. I feel like the 15/16" bore master makes for a pedal that is too soft.
My wagon STOPS with the 4-piston disc's, but in a panic situation I can shove the pedal all the way to the floor and barely lock the front brakes.
I'd like a firmer pedal. I'm going to go to a master with a larger bore soon.
K-H disc's, non-power, stock 9" drums out back FWIW