
I used to ride all my boards that had foot straps (32 up to 80 L) with 2 straps set up in offset layout, but now with a board that has a V strap in the front I am totally comfortable wave riding with the back strap in the middle. I have only used one foil with this board though, 700 cm?, 769 mm wide. Could be the foil or the conditions I use it in, but I don't feel a need for additional leverage with that board/foil combo. The back strap in the center does not feel that good if there are 2 separate straps in the front (that are spaced further apart), but with V strap it feels fine. That said, when riding strapless with small boards I place my feet more offset, with all my foils.