I have knocked up two home made wide tails, I purchased my carbon tail pieces from "Fergo" Greg Ferguson from NSW, Greg is a boat builder and knows a thing or two about carbon + he's an old speed sailor who is getting back into the sport again and has made some nice fins.
The first 2 pics are Greg's and I basically followed his instructions used milled fibre and little bit of filler to glue the plate into the boom arms then wrapped 3 layers of carbon round the tail top and bottom, came out real nice hung the boom up in the shed and then hung my 100kg of weight off it to see if it would hold, no problems rock solid.
www.seabreeze.com.au/forums/Windsurfing/New-South-Wales/Carbon-repairs-and-carbon-fins/
Greg's job





my finished boom end
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Thats a seriously good looking tail piece! I'd like to try to make one for my chinook pro 1

Bender said..

Great job makes effort look very back yard, whitch it was

Bender if the thing holds who cares, I could have blocked the clear coat back to get a mirror finish but not fussed about a few runs here and there, the real test will be on the water.