Like others have said, the simple answer is: The tensioner should be accurate (at 90 degrees, and very, very close within reasonable angle deviation). The clamps will cause higher amounts of tension loss due to the drawback and/or twisting.
This assumes no manufacturing defects and/or unaccounted for variables (friction in the drop weight, etc)
4x Dunlop Bio 200 L // Babolat Sensor
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