Here's my comparison, with the TSP I can hit 500 Drives and I don't get tired. With the Elbow Plane, I'm wasted after 100 balls and my hands and core muscles will hurt the remainder of the day. I'm sure that if I did it every day for years, that wouldn't be the case.
How is this relevant to actually playing golf? You don't hit 500 drives in a round....shouldn't the choice be made on what works best?
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"The only real shortcuts are more and more know how"...TGM