Your thoughts on bottoming master cyl when bleeding?

[BLINGMW]

Just wondering what you all have heard, do you think it's an urban legend that bottoming an older master cyl completly when bleeding brakes could lead to seal failure? It makes sense I guess, that the section of the bore that isn't normally used could build up some surface rust or some such gunk and chew up the seal when you bottom it out.

If there is some truth to it, are we talking about REALLY old neglected systems, or is it something to think about a normally maintained street car? Certianly something I shouldn't worry about on my frequently bled track car with fairly new master cyl right? ....RIGHT?

Discuss