RE: Uphauling a 10 m sail on shortboard (iSonic 133)
Hi Thierry P,
I think youi are probably not finding the fore and aft center of buoyancy on your Isonic 133.
You need to put your front foot very close in front of the mast foot, and your rear foot quite a ways behind the mast foot.
In other words you need to shift your weight away from the nose of the board to put the center of your weight over the center of bouyancy
of the board, which is quite a bit further back from the nose than what you may be accustomed to.
The Isonics don't have much volume (float) in the nose and the nose is very short as well, so you simply must move your weight back some.
Hope this helps,