The reason of way too active right arm is detrimental to golf is simply the loss of rhythm and right wrist bent ( overacceleration). making INCONSISTENT low point.
The Key, I learn , is RHYTHM. learning to use accumulator4 dependantly of accumulator 1 , 2 , 3 . with zone 1. They are inter dependant. every part of the swing helps IMHO.
Just a thought.
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God :God is love.
Latest incubator: Finally appreciate why Hogan wrote 19 pages on GRIP. I bet he could write another 40 pages.