[tongzilla]

Vertical Hinging does have a centered motion hence the Line of Compression is sustained just like Horizontal Hinging (and unlike Angled Hinging). However, Vertical Hinging is not the "Ideal Application" because of its extreme Layback Clubface Motion and manual manipulation required to produce it.

Notice I did I not say anything about "Hinging is the key to sustaining Lag" in any of my posts. I kept the concept of sustaining the Line of Compression independent from the concept of sustaining Clubhead Lag. I would add that these ideas should be kept theoretically and conceptually separate, even though they are inextricably linked in the pratical world.

Here is a fact:
The same compression point cannot be maintained during the Impact Interval when using Angled Hinging (the typical Hitter's Hinge Action). There should be no debate about facts. Ceteris paribus, the ball will not go as far. Alas! Everything is not equal!