Stung at low tension, measured higher

[dr moose]

I did a friends racket (Yonex Ezone 98) - he wanted to try a really low tension - 30lbs. Used some Head Lynx Tour (16) I had in the cabinet.

I strung using my old Ektelon H stringer. I checked the tension pull with a fish scale prior to stringing, and it pulled at 31lbs peak, when set at 30lbs. Seemed acceptable.

Anyway, I pulled, and man it was loose, esp. the mains. But after pulling the full bed, I checked using a Tourna String Meter, and the mains registered mid 40s, crosses around 30. This is totally different than any other string job I have ever checked. Typically I pull in the low to mid 50s, and it always checks near where I pull, maybe 2-3 lbs more or less (for the mains - crosses always register ~5-10lbs lower using that meter).

The only think I noted was that when pulling the crosses, the crosses would be sitting bowed away from the previous cross pretty severely (I usually string with a non-poly for crosses, and typically (easily) push the string near the previous cross prior to pulling, which results in the cross straightening out after pulling). So while stringing, I would actively push the cross closer towards the previous cross while pulling, to make sure it was straight after the pull - otherwise, it would end up pretty bowed away after the pull. But I can't imagine why doing this would have affected the end tension at all.

Any reason/ideas as to why my tension measured so much higher than the pull tension? Inaccuracy/Limitation of the scale I am using. Some poor technique?

 

[pico]

I have never used a Tourna String Meter. Kinda interested though since I read your post. I see this though on the TW site with regards to it - " Please note that the stringmeter does not measure reference tension - the tension set on the machine when strung - and that actual tension and reference tension will rarely be the same."

 

[Wes]

So while stringing, I would actively push the cross closer towards the previous cross while pulling, to make sure it was straight after the pull - otherwise, it would end up pretty bowed away after the pull. But I can't imagine why doing this would have affected the end tension at all.

Did you actually ensure that each cross string was straight as you were tensioning, or... did you straighten the cross immediately after your tensioner achieved lock out?

It makes a difference... particularly with a lockout machine.

 

[dr moose]

Did you actually ensure that each cross string was straight as you were tensioning, or... did you straighten the cross immediately after your tensioner achieved lock out?

It makes a difference... particularly with a lockout machine.

for this pull, I was straightening it as I was pulling, not after. Typically though, I push the string (not a poly) closer to the previous cross before pulling, then pulling straightens it up nicely.

 

[dr moose]

I have never used a Tourna String Meter. Kinda interested though since I read your post. I see this though on the TW site with regards to it - " Please note that the stringmeter does not measure reference tension - the tension set on the machine when strung - and that actual tension and reference tension will rarely be the same."

yeah I get that, but typically it is somewhat close, and never ~10+lbs ABOVE what I pulled it. Just seems strange...

 

[LOBALOT]

Here we go again.... Another Stringmeter thread. It is not like there aren't 3000 threads already on the accuracy of this thing so we need to add another?.....