Apparently stubbier people can handle higher draw weights more easily than longer limbed people..
I use a fish scale to measure draw weight and put tape on arrows to mark draw length and when the tape reaches the back of the bow I know i've hit the draw length
I guess that, for your first bow, you can tiller for 40lbs@28" and if it's too heavy you can shave it down until it's light enough? Or make another..
thumb draw, 3 finger or other?
I got some cheap pieces of leg sinew on ebay, good enough for wrapping arrow nocks and bow string nocks but not for bow backing unless you get a lot. Sinew should be pounded dry in smooth surfaces and not way too hard to avoid breaking fibers. It does take forever. Backstrap is easier and better for wrapping stuff but leg sinew works and is cheaper from what I saw.
most important things about form i've learned recently: push the bow arm shoulder out so that the arm elbow twists clockwise (rather than just trying to twist the arm without rotating the hand which seems very awkward??), have the bow shoulder not hunched, pull shoulder blades together near the end of the draw?
did you see this?
https://www.youtube.com/watch?v=NxUG5E9-1w8 I guess you don't have to let the wood season for
that long, necessarily