First of all, its not 100% finished. If I'm under I can "spend" some of the weight on a second coat of paint, or add some carbon to the beams or reinforce any number of things. I got lots of places to add reinforcement before I strap on the lead.

Second, I havent gotten around to a final weigh in. My scale only goes to 40kg, so I cant weight all at once, so I'm still not 100% sure of my total weight. My spreadsheet is a rough idea of the weight, I'm sure the actuals will be greater and that the misc nuts and bolts will add up. Rounding errors could add up. The goal is to be under not over and correct up. So from a design and build perpective, I'm right on target.

I'll be happy if it doesnt sink or fail dramatically on the first time out.

Bill