Reply to "low brake pedal"

Yesterday I pulled the MC again. In the vise I first applied pressure to the piston using a socket and clamp. It held pressure. I then started pushing on the piston and noticed that I had no geyser effect in the rear chamber. I lowered the fluid level and still no geyser. The I attached fittings and hoses and compared the timing and amount of fluid flow. The rear chamber started late and had half the flow. I declared it defective. The parts store exchanged it for a new AC Delco. I ordered a pressure bleeder from Summit. This will mean no more wife in the drivers seat complaining about pumping the brake pedal.