I initilly had problems going upwind (chop or not) on Evo 92 (weight 102) so now use MFC 30 (crossover) for over 5 metre and 26 (drake) for under.The MFC 30 sounds big (if thats poss) but I have no problems getting upwind and board is still lose and free.(Relatively)
I was told fin would be too big but (IMO) its fine.
Max sail size is still around 5.7 ish.(Even with 30 in)
Its my high wind board and on occasions I`ve changed down to it carrying a bigger fin than board I`ve just left. (Goya FXR) Seems totally wrong but ????
Try a 28 and a 30 ???? (for 5metre + sails)