the chain is the 2nd one for the bike. the paperwork says it was replaced as part of a recall at about 7k miles and now has just over 10k (I guess the stock K1 chains snapped a lot under hard acceleration?)
The chain is in spec and tight at the 1st notch.
I've done some hard/fast riding, and some highway riding and nothing gets very wet or very dry. It's definitely not o-ring, and I've not heard about 'X-ring' outside of star wars. I'm definitely used to using moly lube, but this, so far, seems to be super manageable and doing its job. I guess my main concern is, in everyone's experience, is this the kind of thing that goes from fine to shot in an instant, or does it gradually start to make the whole output shaft housing soaked?