Still old problem... when the brake pedal is depressed the feel of travel is normal however it has below normal stopping power. When it is depressed consecutive times, the pedal gets stiffer and stopping power is further reduced.

This statement leads me to believe the brakes are bled correctly but something is wrong with the power assist. If you had air in the lines you would have little braking power but the pedal would also go easily to the floor. I would take a closer look at the booster and the master cylinder. Either you are getting no assist and this makes the brakes feel hard or there is an obstruction in the master cylinder that is restricting its travel. Good luck, RT

__________________
When all else fails, vote from the rooftops!
84' Mercedes Benz 300D Anthracite/black, 171K
03' Volkswagen Jetta TDI blue/black, 93K
93' Chevrolet C2500HD ExCab 6.5TD, Two-tone blue, 252K