I agree with Phil that pressurizing the brake fluid works the best to bleed/flush brakes.
If you have a helper and he pumps the brakes, you risk destroying the MC seal as the peddle and MC piston go into new territory deep in the MC bore that can be pitted from old age.
Avoid so called rebuilt master cylinders. It's likely that they don't hone or re-sleeve the bore and just replace the seal. So they are basically junk.
What country is Phil in? I couldn't follow the thread, and "Profile" is busted.
Bill
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