this is what i did on my naish 17 when i had it. the board in the photo isn't mine, so someone else had the same idea. the other side hasn't been cut down
the second photo i roughly drew in the slots i put in my board to make it easier for the ridge to fit between my toes. the slot was cut out of the grip on the peddle
a little carbon strip glued down just infront of the 'toe area helps the peddle slip back to neutral