Finished!

The obligatory Portrait

And the obligatory "trophy shot".
Measured 17', oddly 3" longer than the design length. Weighed in at a whopping 45 lbs.
We went to the usual lake for the maiden voyage, on a beautiful day.

This was a brief trial, but I made some observations. The higher volume seems to make it "bob" more than the O.I. Tracks well, and responds to leaned turns. The secondary stability is pretty good. I had my GPS mounted to the rigging-it seems to cruise very easily at 4 MPH, but I had trouble maintaining 5, and couldn't hit 6. I think the waterline length is actually longer than the O.I.