Ive shot cedar, aluminum, and carbon in the past. I now use bamboo exclusively for all my shooting/hunting. They are strong, hold up to tons of abuse, and shoot really nice.
The natural taper makes for a quicker recovery, and a bit of natural FOC.
I've tried footed bamboo, and they work okay also. But, I've found that wrapping some silk bead cord behind the point keeps the shaft from splitting in the event of a glancing rock hit. This is with a small diameter hardwood dowel epoxied into the end of the shaft, about 2" long.
The bad thing is that they aren't as straight as man-made materials, and some of the shafts just don't shoot well at all. But, that is to be expected of a natural material.
Use steam to straighten them, or soak the bent area with lotsa water and heat with a hair dryer.