The modification is simple. Unlike common rail edges that have the same profile the whole length of the side-cut, tapered rails start with a fully rounded profile near the nose (front of board) then tapering past the front foot area toward the mid section, and finishing at the back of the board with a hard edge rail that sharpens to the tail kick. This variation in rail shape, although subtle, provides what could be best described as a channeling effect; the softer entry point for the front rail to ‘break’ the sand (especially if it’s hard packed) reduces the laminate edge ‘biting’ and catching out the front rail. Instead, it allows the rider to initiate a smoother entry into the turn, holding a better line of direction with the sharp edge on the back foot and riding with more precision and control.
Flowing rail to rail carving and dialing in your turns on a timber board (which are less flexible than composite decks) can be made easier with tapered rails, helping you to improve your overall performance, up your shred level and fun factor!