I think I understand a bit better...

If I were to hold the club directly in front of me with Accum #3 zeroed out and feel the right arm stretching the left out, then repeat that with some Accum #3 angle it feels different to how I was doing it.

I tink I got it :salut:

Although my chipping and pitching is MILES better already with what I WAS doing...

Acc # 3
 

I recommend researching the # 3 Acc. It is important in its own right, but is connected to several other important elements. It will pay dividends to undestand something about it. Bucket made a living out of Acc # 3...I learned a lot from his adventures!