[Myron Piatek]

Maybe internal degradation of any rubber lines you may have? I heard that they can bunch up and cause internal restriction or blockage as they age.

I've had some trouble with holding the car on the line with OEM disc/drums lately and this thread made me realize that the brake "T" assembly on the rear end housing is the only rubber hose I still have in the system. M/C has been changed and all the other lines are solid or braided.

I put a higher priority on the rear brakes because harnessing the torque there will accomplish more than at the front. The best front brakes still only have a pair of skinny front runners trying to hold the car and can easily slide.