An here it Tatys response:
Hi Ola and all,
I have tried both boards 76 and 86.
I have the time to test both boards in same conditions 6.3 sails choppy conditions.
I weight 73kg..
And I like pretty much the pads of the 76 and the speed is great, it doesn't feel that small, but for me it would be a board that I can use in really high wind days.
As in gusty / windy days it won't be my board of choice..
The 86 is my board that I can use in high windy days plus in gusty wind..
I felt much comfortable sailing on the 86 then on the 76.
I also feel that the 86 is much all around board that can cover the same small sail on the 76 and even a bigger sail then the 76.
Even Gran Canaria when Kevin and I tested these two boards we felt the the 86 is much nicer in speed and much more controlable.