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2keen said..

Decided it was time to take what I've learnt from foil boards and put it into a custom.
I wanted a board with low swing weight but enough volume to uphaul. I wanted volume under my foot straps, so straps forward which means foil forward while at the same time the ability to move the UJ back towards my front straps.
"Mark Australia" has been building bulletproof custom wave boards for years so I went to him with pages of information

The result is everything I could have dreamed it would be.
170 x 66 x 14 ,110 litres , 8 kgs with straps
A board this short requires precision technique to pop it up onto the foil but it releases cleanly without feeling "sticky"
It is a carving machine, super low swing weight with the ability to schlog home if the wind drops.
Well done Mark

Very nice indeed. I am in the process on build myslef a second board; my first one is 210 x 76 x 130ish liters which behaves quite well in flight but having very deep double concaves on the front it sticks a bit when getting to fly, so not the fastest there. Moreover when trying to go upwind banking the board I tend to drop, I put tracks to move the foil and do so movin it forward for more power, but would need more leverage on the rear, I feel I need to put mu feet on the rail to gain someting but not enough. the board is only 48 cm large on the stern, nowadays even smaller boards like the wizard 114 are larger on the back (around 60 cm if I am not mistaken.
I would like to go narrower (around 70 cm max), shorter (around 190 cm), and give the board more volume on the back and more width to go upwind better. Volume seem not to add weight nor impact on manoeuverability once in the air so I would stay around 120 liters, but moving everything further back (done so even on my first design). On the bottom I would resenble your design, monoconcave into flat with bevels on the fron t and sharp, vertical rails on the back from front straps.
this should get up on to the foil earlier, I hope will be a good compromise for manouverability and straight line performances expecially upwind.
foilwise I would like to use 800 and 1000 front wings middle aspect ratio (fanatic flow), and sails wise I would go from 6.7 (very light wind), to 4.0 ish the change to the 800 wing instead of going smaller with sail.
I am 75 kg good windsurfer and windfoiler (nailing jibes at the moment), I ride in Italy so no swell here, messy wind driven wave, nice to ride them nevertheless.
What do you think about? Is my plan sound in your opinion?
cheers
Edoardo