First why is fluid "leaking" out of the lid gasket. There should be no fluid touching that gasket at rest. Normal fluid level is about 1/2" below the top of the master to alow for expansion.
I agree, I've seen the old style MC leak around the top, mainly because they were over filled. Couple that with not the best design for retaining the lid and mainlining a seal and, well they leak. But just like all the other parts stores, they don't make the parts, they just sell them. You get what you pay for!
