Relling Sails made several sails for me until they were taken over in 2003 by North UK (aka the evil empire). Always nicely made and set perfectly. Apart from one mainsail which was replaced with no argument. 'That's not right, bring it back and we'll replace it next week'.
Good bloke Mike Relling, clever man and a very good sailmaker. You still see his name on top boats and project managing. It's a long while ago but I thought he folded up Relling Sails to go and do something else, ? back in New Zealand and he gave/sold some of his discs to North rather than them taking him over. I may be wrong though