Swiebertje – thats what I thought prebend could cause problems at deck level – my boat had been previously raced and had a vicious kicker on it. My friend who is a rigger and maintains many Wayfarer training boats (he was also Flying Fifteen World Champion for a years as crew – probably still is!) said that this was quite usual on Wayfarers and that the sleeve was his standard fix – he’d never had any problems. What do you know that I don’t? I’d be interested to hear your recommendations.