Doing a nightshift then going out in 25-30knts from 7am to1pm made me think 'had enough'. Unfortunately I left with Als borrowed downhaul (shall return new one pronto). Where's the best to get a replacement panel in my 4.5m?

Don't worry Simon... It was an old piece of rope that I wasn't using, I'm sure you'll repay the favour one day when I snap a piece.

You can try Blue Chip windsurfing for repairs: http://www.windsurfer.co.uk/sailrepairs.htm />
I've had a few sails repaired by them that were fine, and they have plenty of DIY repair products too. Other places are Cygnus sails, although i've never used them. Dunk has something to do with them though so will know more.

Al.