[lagster]

So... are some of you saying that you believe the more bent over posture is ACTUALLY BETTER for the back as long as the SPINE ANGLE is kept throughout the STROKE?

It seems to me that the more Upright Stroke(with less bent over posture), that requires less rotation, would cause less shearing of the back or spine. Good Posture, of course with the Upright Stroke (Two Planer) is also important.

A very, strong, young person, of course, can do about what ever they want, for a while. Over time, if too much trauma has been placed on their back(Trevino etc.) the backs will start to hurt.

Maybe the Neutral Spine, and core strength is the Key?