Hi Ian,
Thank you for your quick answer.
I've just checked the severne site, and it has been updated today !

nice work (only one regret : the weights of the sails is still missing...).
My question : I have a 9.5 ; which other size do you suggest for my slalom 145 liters (next sail : NP Jet 6.9 for my starboard aero 117).
Do you think I must use my slalom board (something like an isonic 145) with the only 9.5 (if so i will sell the C2 and get the new Element when available), or get a 8.5 or 7.5 also ?
Or would you advise to sell the C2 9.5 and get only an Element 8.5 ?
Thank you very much.