[slicer mcgolf]

I tried to change the name of the thread to keep the language as per HK. the knees are not considered an accumulator as per TGM so lets leave it at that. if HK wanted them there, he would have described them as such. I mean.. he had 6 editions, right?
Bernt - did I misread your post? the FACT is that they are above the waist. The point is that they deliver power to the levers.. Great post BTW.. and thanks to Bucket.

As per bucket's description, which matches the way someone else described it, the knees can facilitate power to the pivot, and as such, to pp4. Simple.. Easy.. Makes sense.

Would it be fair to say that the knees are a one of many segments that power the pivot? knees are independent of hips, which are independent of the ribcage/shoulders & chest.

ACC4 is described as the MASTER ACC, so I am wondering if it is the master due to the power source (it would be the start of the kinetic chain) or is it because it's the most inner part of the circle of the swing, and therefore has a major impact on the rest of the power package? (lots of meat in there....)