The last of the bottom planking was finished today. I worked out a long, tedious system to get the correct shape
of the double tapered plank along the keel, which was the last and most difficult to fit in place. If that wasn't bad enough, even the bevel along the keel plank went from gradual to very sharp. At least the second one, which was traced from the first one, went in place in shorter time. Once done, the jig bars were removed from their pylons and everything was flipped over to check on gaps along the bottom planks. It came out quite well.
I made risers to fit under the jig pylons and I'll be picking up some 3" screws tomorrow to put it all together with
enough height to raise the keel off the jig base when I flip everything over to right side up and begin planking the sides and top of the pontoon.
G.