I never try the North on them but the Severne have also less back hand compare to the pryde, so must be ok.
You need the same sails as last year but we increase the ability of the board to handle bigger sails.
If you want to be the faster in FW the F162 will help you, and the part who we increase the most is the down wind. Due to the extra wide the board give you less sensation up wind but you will arrive first at the top mark compare to the F161.So must be excellent to have the 162 that you keep for 2 years with the new rule.
Hope this help
All the best