[Daryl]

The authors I mentioned used high speed video, stroboscopic photographs, and strain gauge measurements to support their reasoning. I'm not sure that HK had those available to him, and, if not, made a perfectly reasonable assumption based on the facts he had at the time. If he did, I'm sure many would be interested in that data.

I'm sure that all of the tools used in "Search for the perfect swing" were available to Homer.

The authors you quote explain their observations. I don't disagree with what they observed. However they fail to explain what causes the shaft to bend backwards. Additionally, they don't conclude what effect this has on impact. Third, they don't advocate this procedure. They have only observed it. In other words, they imply much, prove nothing. Please do me the favor of observing one more photo. Visit the section on this site named "Champions at Impact" and review Lee Trevino at impact. Then, in your own words, if you would kindly do so, explain your observations to me.