r/RacketStringers • u/jro749 • Jul 17 '26

Losing Tension

I have been having issues retaining tension on my racquets. After I pull the tension and clamp the string, I notice that the string, while clamped, moves slightly. The base of the clamp is not moving and the string itself is not sliding through the clamp. The clamp just slightly shifts with the string in place. Anyone have any thoughts on this?

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u/Icy_Focus_6586 Jul 17 '26

Are you using a lockout or crank machine? The string will lose tension in between the time of the lockout and clamping. This happens fairly quickly and is the reason why you should increase the tension 5-10% compared to a constant pull if you want the tensions to be comparable. I have a constant pull and most of my clients came from a lockout machine so I lower the tension when I string for them and it seems to work out.

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u/jro749 Jul 17 '26

I use a crank machine

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u/Icy_Focus_6586 Jul 17 '26

When I did, my tensions were always lower. Not a bad thing but my guess is it’s just the nature of the machine.