Maybe if you didn't put worn out hard parts back into your transmission then you wouldn't be having sealing ring issues. And advising other people to put worn out drums back into their transmission is downright irresponsible.
What in Jesus name are you talking about.
Read the sealing ring thread I started before you answer.
The machining in the video is to fix the wear.
I never advised him to do anything. He's advising us.
I only asked you a question about how Teflon rings seal because unlike metal rings, they have no radial tension.