I've just finished reading the article, and must say I'm a bit surprised that you would choose to publish an article touting the benefits of a technique that is is clearly against written and accepted industry safety standards. Yes, the standards allow for exceptions to be made, but I'm sure it wasn't the intent of those who drafted these standards to excuse casual and habituated one handed cutting. I understand wanting to spark conversation, and assume that was the purpose of sharing this article. I work for a municipality that employs around twenty five arborists, of these, I am the only one who does not habitually one hand a saw. In the last eight years there have been three or four accidents directly attributable to the technique, and at least half of the guys have undergone shoulder surgery, or suffer chronic pain most likely caused by the poor ergonomics inherent to one handing. In the end it's your body you're risking. There is almost always another way to get the job done. Make your own decisions, but for me the purported "benefits " just don't add up in the long run.