Gus, I have not weighed the sinew, but I will try to do that before applying the backing.
Dave, for my Eagle Cap trip this year I'm actually favoring a short osage bow that I recently built. But if this one turns out well, who knows...
Shaun, I'm not too concerned about that knot. It seems solid and I have dealt with larger edge knots with yew in the past with no problem.
I plan on applying the first course of sinew this weekend. Stay tuned for more pictures.
Thank you all for the really nice comments.