One thing to be keerful bout with manzanita root. Depending on the type of soil it grew in, it will have pockets of sand or rocks mixed in with it. Sand isn't that big an issue. It will instantly dull tools but resharpening is no big issue and you can clean the pocket out at that point. Now rocks, on the other hand, can be a bit iffy at 300-2000rpm.
I think, cause of that, you see more carved Manzanita than turned.
dietrich
P.S.(got anyone with connections at a hospital or dentists office? If so, x-ray it)