Ok gang, here's a question for you... I just finished my first build (a triple). I figured it would be a tad bit over the spec'd 68lbs because of my extra epoxy coats, my sloppy cockpit that has quite a few wrinkles, and my large fillets. But I swear I must have sanded off ten pounds of "extra" epoxy getting the cockpit, hull and deck smooth... so, why do I have a 90 lb boat? Granted, this tub did use every bit of the 3 gallons of supplied epoxy:)
The boat is still dream to paddle, the Mrs. started complaining, during our frequent loading and unload while on a recent San Juans trip, that the new boat seemed a lot heavier than the old plastic singles (65lbs)... I mentioned that it probably was indeed heavier, but more like 75 or so... the scale told a different story:)
How off have the weights been on some of your builds?