[12 piece bucket]

I've seen many discussions in forums, blogs, videos, etc. All of the explanations I've heard refer to the straight line from the left shoulder to the club-head at impact. Straight left arm, flat left wrist, bent right wrist and forward leaning shaft. This is referred to as the line of compression. I would say that this is actually the alignment of compression.

Yeah the freakin' dude that wrote the forward to the books says that.....that ain't EVEN CLOSE!!!!! How do you mess that up???? It don't say that NO WHERE NEVER EVER NEVER EVER NEVER NEVER EVER in the book....good gravy what in the world is wrong with people...

The sweetspot is the bullet....from a definition standpoint it don't have squat to do with no arms no wrists or even no foward leaning shafts....the manipulation and sustaining may have something to do with the parts...but some dingdong showing a line running up the left arm is fundamentally out of his tree.

LINE OF COMPRESSION Example – bullet hole through a baseball
Mechanical – the line through center of that area from which material flows when displaced by a compressing force.
Golf – The direction of the Impact Force, as related to the various centerlines, for determining Ball Behavior

Uh dude....It ain't up his arm...it'd be down there on the mat...

Test...failed.