I will try that. So the end result was they couldn't duplicate the problem and as much as I tried I couldn't either when I was driving it. The tech even drove the car with me in to replicate the problem. None.. We braked, braked and braked some more even going in reverse and it would not do it. He did find a whole in my coolant tank tho, pin sized and was leaking coolant. He patched it up for me enough so I can order a new one. No charge... He checked for vaccum leaks and found none that he could see. He said the master cylinder is top notch and working great and no leaks. The search continues.