I don't have the time to install holds and turf until this winter, so I want to just cut into the tray sides just enough to hook my toes in a little. There is waterlogged foam in there now so will it really hurt anything if I just carve a little foam out? Probably 4 inches long, 2 inches high, and 1.5 inches deep, I have screws on the back so I can let the water out on when its on the trailer.