Lets put it this way, using action boo as a backing is almost like sanding the nodes right off a raw bamboo backing.
Actionboo would be slightly stronger since the nodes are offset from one another, but I'd be worried about the backing poppoing a splinter on the corner wherever there is a node.
My suggestion is either use raw bamboo as is common, or if you want to use lumber for a backing, use straight grained hickory, pecan, white oak, or hard maple. All are readily available, typically straight grained, and fairly inexpensive.