Well, off to find leaks! I’m at roughly 2-3 breaths every couple hours, but would like to make it a bit tighter!
The front end is a little botched (turns out I misread your instructions; I think you said 10-12 inches from the end of the boat/tip of the boat when ironing the center seams and I did 10 inches from the end of the seam. It was too late at that point for the front seam. Back seam is more or less without flaws.