Did not mean to offend anyone. I think the gentleman asked for assistance and was offended by the reply that it was a major safety concern that he would not spend the money.

I will take my chances on my ability to rebuild a master cylinder
and to feel comfortable with it over a German part rebuilt in India with Chinese parts.

If I remember correctly the parts companies quit selling rebuild kits because there were to many that were just having the seals installed.

I would much rather have someone know he has a problem and address it , than have someone have a problem and ignore it because he can not afford it or feel it is outragious to repair.

Master cylinders and slave cylinders have been being rebuilt for many years without failures. The reason we quit doing them was profit margins. It was cheaper to buy a rebuilt one than it was to have a tech do it correctly. Just as your response said.

There is a difference between changing parts and rebuilding parts.

If you can repair it repair it. ( You will always know where the weak spot is.) If you can't repair it ,replace it.

Have you ever had a rebuilt master-cylinder returned?

The worst thing you can tell a man is he can't do it.