Recently added a 10’ Blade power pole on our 2375 GCW. Utilized the new style mount as we did not want anything attached to the top side of the deck (the kids enjoy jumping off the deck). I did not have to cut the M brace to install the back plate, only drilled four holes on each side for the mounting bolts and used a fish tape and string to pull the back plate into place. I taped the washer and nut onto the boxed end of a ratcheting wrench to reach the furthest bolt, see picture. It took me about four hours to install. If you have any questions feel free to ask.