I was coming out of the surf and saw this guy with a broken longboard. The piece I took was about 55" the same length as the BBs I ride. The glass had already been torn off the bottom and the deck glass easily peeled off as well. The only places the underlying laminated glass, or the complete glass job appears to have held, was along the rails.
I was interested in what would be the best way to deal with this. I started cutting along the rail apex with a drimmel like tool, but small chunks of glass came out. Alterntaively, I could sand what is left, but that will be a messy job.I didn't want to make the board narrower, but that would be an option - just cut off 1" inch from inside the rail.