This thread has suffered from a "burden of proof" disagreement. Some folks seem to think the burden of proof is on the Osage guys to show that it is superior, other seems to think the burden of proof is on the other guys to show that Osage is inferior.
Its a hell of a lot easier to show that Osage is NOT inferior than it is to show that it is, in fact, superior to other woods.
I wish poplar had never been part of this though. It just muddied the waters. You can't "design your way" into a very practical hunting weapon with a lot of woods, for most of the hunting styles that bow hunter use. Maybe in the performance category, design is king, but in the 'real world' category wood choice makes a ton of difference. Its hard to hunt with a 76" long bow in most places in North America. Hence, our ancestors (who knew more about bows than this whole site times a million) carefully picked the wood they chose to make bows. Ishi, may have said (and I paraphrase) "any old stick will work for a bow" but given the choice he picked mountain juniper, right?. Hmmm..
"While living at the museum, Ishi made bows from many different woods, but his favorite material for the bows he lived by was mountain juniper (T. Kroeber: 189). He told the anthropologists that other tribes used yew, and he knew the leaves were poisonous to eat (Heizer and T. Kroeber: 175)."
Gabe