[bambam]

Do know if hitters always use an angled hinge at start up and follow through? Azinger, at least when he was coached by Redman, used angled hinge on BS, DS, and FT but I always thought he was a left side pull swinger.

A couple things:

Hinge action doesn't occur at startup. It's what the club does just after impact. If I had the book in front of me, I'd get you the reference (I'll add it later). The takeaway does tend to setup your motion for the desired hinge action, however.

Per 10-19-0, "Hinge Action does NOT differentiate Hitting and Swinging", so I wouldn't say a hitter always uses angled hinging, but it is the natural tendency when hitting, just like horizontal hinging is the natural tendency when swinging.