Keeps my wallet busy too, if it wasn't such a great car I'd ave ditched it a long time ago believe!!
I'm going to speak to them and start with a compression test which if proves healthy will then single out the seals as the cause.
For the record, I'm one of the biggest advocates of Woods on here!! They've looked after me and have become good mates over the years which is probably why I'm so recurrent to have to address this with them. Any part can fail at anytime regardless and I'm sure usual they'll bend over backwards to rectify the situation.
Will keep this updated as I progress!!