Have been an avid reader of Morgan's "Windsurfing Learning Curve" blog in the Qld Forum ( is this the largest post ever - 410 post and 24,353 reads ) and it got me thinking what was my first new board. Knew it was a Dufour but not the Wing. Found it on this site hitthewave.wordpress.com/2011/05/02/windsurfing-brochures-ads-80s-90s/
It was the Dufour Sun. Started the 30 + year journey in the Bribie Island passage and have had the bug ever since.
Very interesting bit of history. Can you find your first board?

To my surprise I discovered that one day the complete bottom of my old but favorite JP 91 L board become separated from the board filler.
I could be water leak plus beating on the chop at speed I suspect but now there is few centimeters gap on whole bottom surface, without any obvious external signs , whole bottom is simply separated
I wish to drill a hole, insert some glue and compress the bottom , stick that bottom to the internal board structure again.
What sort of glue could I use? I thought that polyurethane foam will be the easiest to fill up the space. (?) but if not react with that filler inside? will it last on the chop?
should I drill whole from bottom, side or batter upper surface thought the board?
Did somebody similar repair or board need discarding ?