Thanks.
The symptoms are as you’d expect when you’ve not got pressure on the then apply pedal pressure it skips a tiny bit to the next pawl. It doesn’t throw you off the bike just an annoying clank.
It definitely gets better if you thin out the grease. But not perfect.
Hayes EU sent me some new freehubs and the springs were slightly longer but it was only a bit better.
It maybe does it’s 2-3 times per ride but is annoying for a posh set of wheels.
Failing all this I’m going to get it rebuilt on Hopes.
Shame as it means cutting the sapim spokes off.
Girlfriend has identical bike and hers does it too
Will try different lubes – the recommended one is hard to get hold of – Dumonde Tech oil. Looks like an import.