To be honest with you Talondale without a crono I can't tell the difference between the 2, hunted with both about a dozen times each and they seem equally rugged, only difference I've noticed is a little more handshock in the Osage.
bottom line I'm not going out of my way to try aquire Osage, ...guava does what I need it to do in a hunting bow, pass tru in animals
and taking the punishment of hunting conditions.
If you check PRIMITIVE ARCHER site the southern comunity bow was made from one of my staves, osage bowyers tillered it, and had real nice things to say about how hard the bow was shooting