I honestly can't answer that question. On whitewoods I don't chase a ring unless I just have no other choice, which is almost never. I am an Osage guy. I have used elm, Hackberry, Pecan, Hickory, Maple, Persimmon and probably a few others, and I use the wood under the bark so no ring chasing.
As far as violating a ring and backing it, you can violate a ring and not back one and it might shoot forever, or it may break at the violation. Shoot for a perfect back first and then let all the other decisions flow from there.