Primitive Archer

Here are clearly very experienced bowyers (and I already knew that…)! Number 4 is the best!

Here are the results I got from the program. It is clearly shown that the closer the bend is to the handle, the more energy the bow stores. Also, the more whip-tillered the bow is, the more efficient it becomes (the reason here being lower tip mass). Very interestingly, the speed is almost the same, independent of the tiller shape! It would be possible to say that every taper rate from −0.006 to 0.002 is good, so in that sense it does not really matter how you tiller.

I'd maybe lengthen that powerlam by 6" and start a reverse taper 7" from the tip - then recheck 

I'd say 4 or 5, even tho all my experience comes from reading this forum, watching bowyers on youtube and 10-ish broken bows   

Has anyone other than me took the force draw and labeled the numbers marked on your bend profile chart or plan. Then tiller to force draw at each bend profile. This can double check  your wood properties possibly. It would be after the fact but possibly teach you something. When I did that it was pretty amassing to me how accurate the design was. Doing that in a selfbow is a real challenge. Because of the unknown crown. But tillering to force draw and bend profile is the answer to the unknown in my opinion. Please correct me if I’m wrong.

I am not sure if I understand you correctly. Could you please give an example? I am not sure how the draw-force curve can be involved, because the bow is overweighted during the tillering process?

3 and 4 look the best for me too.