It's an industry standard that boards aren't covered under warranty. Even the boards with special Grind Bases, or Enduro Bases, basically the ones made made to be rail specific aren't covered, they're just meant to hold up better on the rails to prolong the life of the board as you won't be getting any warranty from it if it breaks due to rail riding. I'm 99% sure the O'Brien R5 and Local that And mentioned are the ONLY boards currently out that carry a warranty for rail damage. At least I haven't come across any others. That is pretty solid of whichever board company you dealt with to offer you a discount.