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Stopping Drop-Weight Guesswork

I recently purchased a drop-weight machine, and became concerned regarding the subjectivity of when the weight rod was truly horizontal (and thus, pulling tension most accurately). It occurred to me that a line level attached to the end of the weight rod would remove all doubt. I picked up a cheap (and lightweight) plastic line level at the local hardware store and attached it using two tie-wraps. I then leveled the base to be accurate and checked the system with a calibrator: Same result every time.

5 sets of Klip K-Boom 18 to:

Josh Gelman, New York, NY

 

Tennis books from USRSA

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