Hi
We have used Jeckells in this year with excellent results, new roller genoa. We have had sails from them in the past and they changed for the better the way the boat sails. If we need sails in the future we will be using them again. I am not connected to them in any way just a very satisfied customer.
Avantage in Brightlingssea made mine - very happy with them. The main had a bit too much roach initially - the headboard caught on the backstay when tacking - but he quickly resolved that.
A vote for Suffolk Sails, I had a similar issue about quotes, so I rang them Anyway, cheaper and the stuff was excellent quality and alteration (my fault) done without charge.