The Grain Surfboards Waterlog surfboard has now had the fin box installed, the entire board has been sanded, and the bottom has received its gloss coat. Lots of progress since my last post.  I bought a Fins Unlimited Performance fin. No idea if that was a good idea or not, but it looks cool.     In my last post I had installed the vent plug and the leash cup. Since then I routed out the trench for the fin box and installed it. It went easier than I expected but I was nervous routing the trench.  Before installing the blocking for the fin box a few weeks ago, I drilled two marker holes for where the fin box would go so that I could easily see where to install it when I finally got to this point. I felt better about doing this than using measurements from the tail that might change somewhat during shaping. See the pictures below and you can make out the two holes fore and aft of the box layout.   I taped off the area and then carefully measured out fro...