Slightly off topic but doesn't this disprove the whole osmosis cause of year round afloat? This yacht was sunk for years and doesn't have osmosis - those who now argue that some hulls are just prone to it and others not becuase of their layup may well be right.
What I have been going off is this :- http://www.oocities.org/sailingkatryn/Rudder.html but what I need to know is how high up do you have the shoulder.
I have had contact with LustyD on the Vivacity facebook page https://www.facebook.com/groups/162492177112018/?fref=ts his Vivacity 20 is ansum![]()

Would love to see how much cheaper this works out than PBO's Snappie
I'd say Quicky will do this for a fraction of the costs PBO have. They are doing it all "properly", with all the expensive paint and gear.
A DIY'er can do it for peanuts if he scrimps and scrounges and does it all himself using cheaper products, and whatever is to hand at the right price.
Keep at it man!