I've been searching for instructions on how to remove my old saddle from my seatpost. All the videos/guides I've seen have been about the newer kind of clamping mechanism where just one bolt needs to be loosened with an allen wrench. Mine is different- there are two bolts on either side of the saddle and none of my tools seem to fit. (It's an HL Aluminum Micro Adjust 27.2 X 300mm). How can I remove it??