Fair comment Baz. But I'm just wondering why these seals have performed flawlessly over the years for me? Not just one or two but all of them with exception of those mentioned above and for I don't know how many cycles?
Have I just been lucky then? Ive stripped a few to check and there has been nothing adverse noted?
As I say the moment any give me trouble I will strip them out. But I don't see the need when they perform so well?
Perhaps design also has something to do with it? I know my old mk 1 Vulcan uses a ptfe seal and is performing well after all these years.
I have the luxury of two identical Diana's T01s (albeit different calibres) and will definitely go the oem seal route next time around and compare.
Dave