I had a really tough time solving this one as well. I became rather succesful with the solution.
This problem personally for me is caused by , "The impulse to drive the ball squarely FORWARD towards the target" thus the right shoulder wants to participate in a way unfavourable. And the solution , 2-N-0 Underpitch must be present to prevent Roundhousing. learning to let the shoulder stay back and down .
I solved it as per Comdpa personal suggestion to learn to feel to square a tennis racket on a horizontal path. keeping the shoulder back and down.
Also As per Yoda , perform this as drill: 10-5-E close close stance, Strong double action wrist, In to Out path, Cut shot. Post. Did alot of those. took me a while to understand why yoda suggested this too.
So the objective is to get the more " out down and replace the incorrect forward impact with the correct ones ... 3 dimensinal impact.
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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.