Lately, my habit is to just string a full poly setup at 61 lbs and use it until it is half way notched. I hit very smoothly so I don't break polys for more than a month.
It is said that using polys until they break can cause arm problems. The resiliency is gone at the 10 hour mark on many of them. Others lose it at 6, then some can last for 20.
A recent poll taken showed that 65% just use them until they break. Are you one of the 65%?
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They are ideal for me at least from 2 points of view:
are very thin - I'm using 1.17 version
are profiled and twisted
so are very good for spin generation and in the same time are quite resistant to stress... I usually string the racket (in kg) 27 mains/ 26 crosses and I'm playing with Aero pro Drive GT... Till now nothing to complain about this... Initially when I discovered this Signum string I was still playing wioth Cortex and somehow the feel was not so good as it is on GT...
So, I never broke these strings till now I just cut it when I felt that they move too much, usually after 15-20 hours of playing even a little bit more...
Tension loss is a very real component of any tennis string. With an initial 24 hour tension loss of anywhere from 6 - 15% maybe even more for some strings, it is important to chose your string with some forethought. Although we tend to look at professionals for our tennis purchases, we should not focus on this too intensly because the Pro's have their rackets strung before each match and therefore tension loss is not an issue and their rackets feel crisp for a few sets and then the strings are cut out and the process starts over.
Polyester strings for the most part lose the same or sometimes less tension than multifilaments but over time restringing should occur at the same rate or more than strings that fray. Although we look for knotching, fraying or the 'thud' sound in the racket before restringing, waiting until poly breaks is not recommeded. Start with the original rule of " string as many times a year as you play a week' and work from there. Take note of the date you strung your racket and what string, wait 24 hours to play with your racket ( so the initial tension loss is gone) and take a check of your racket once a month. Restringing every three months is probably a good measure and will keep your racket performing within the adequate range.
Another great advantage of polyester strings is the topspin factor. This works because polyester strings move when the ball makes impact and this creates spin, the string quickly returns back into position again. When the strings notch, this cannot occur in the same way and you loss the 'spin' potential of the string. If you have the opportunity to restring every 10-20 hours this would be awesome!
SHould you increase tension 5 - 10% when stringing polyester? There are two schools of thought here that I know of. The fact that polyester strings lose considerable tension suggests that you need to add some tension to compensate. On the otherhand, polyester string tends to feel 'stiffer' and therefore it should be strung 5-10% looser!.
Please be sure to check out my blog at www.racketstringingtips.com
thanks
Patrick
MRT
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