David,
I am so paranoid about making an unbacked first bow, I would probably use titanium if it weren't so darned expensive.
As for the Comanche, while I have the utmost respect for them--and for all Indian cultures--I am somewhat put off by the prevalent white man's myth that they were somehow morally superior to more "advanced" cultures. They were human and they did what they had to do to survive. Life was short and cruel to them and they could be brutally cruel to each other. When some of the northern tribes got metal heads from the French, they used them in the attempted genocide of less fortunate groups. Ah, but then, some of them got The horse from the Spanish--and it was payback time at the OK Corral! As for being "green" and conscious of the environment, well, maybe so in some instances, but they also drove whole herds of Bison over cliffs and set fire to the prairie. Some--and the Comanche were notorious in this respect--tortured their enemies and then cut out their tongues to mute their screams, when it was time to get some sleep. And no doubt they were tortured by the white man as well. So they shared all aspects of humanity with us--including (and this is an opinion of mine that may not be popular) the basic tendency of human beings to engage in war and violence. I admire them for being no less and no more than human--and for being no-nonsense about survival in a cruel world.
And on that cheerful note...😃