^That^ is pretty close IMHO.
If the baton and OC fail because you are untrained, or poorly trained, then the tools are not at fault.
IMHO again, too much of LE in the US uses ASP training, and their training program sucks. Almost no one I have seen except a few troops taught by some very competent Monadnock instructors "get" how important power development training is with batons.
Most of the problem with baton use in the Rodney King incident, as an example, was shitty baton training and poor UOF training and decision making. But complete lack of ability to generate power with a baton was key in that mess as well.