Razor Tail
Razor Tail is what happens when you don't use a Skid Plate. The tail gradually gets warn down with time from Ollies and Tail Skids to where it forms a sharp razor-like edge. Razor Tail and Pogos do not go well together so it is best to use a Skid Plate for freestyle in general. Not everyone uses one, but it will greatly prolong the life of your board.