Hi all, my mind is set on getting DiveR inegra wahoo fins ( v excited) and the order is done but I am undecided as to which stiffness I should take ... i am 80 kg and dive 15-35 m often shore diving for a long swim. I was told the medium stiffness was a good choice but i have C4 mustang medium stiffness and find them hard at times. So I d love to hear the wisdom on the street.... Many thanks for the help, safe diving and happy of the year celebrations.