Dave are the ends working at all know? I know you are more familiar with what you are doing but I would try parallel for 8-9” then straight taper to the tips. That’s assuming the bamboo is thick enough on the ends. But make all but the last three inches not bend. But that’s me . IM watching and learning. Like it so far!
You must be in my head Arvin. I just did that! Anyway this makes me feel better the get the outers moving a little more. These bows tend to have more of a circular tiller. This also should lighten it up a bit too. Good call! I’ll post a few pics of it when closer to 55lbs.