Published at Monday, March 12th, 2018 - 09:07:54 AM. Tennis. By Livia Febe.
With polyester strings continuing to dominate the stringing spotlight it's no surprise that string manufacturers are continuously innovating and releasing new polyester strings designed to provide more spin better tension maintenance and improved feel. French string manufacturer Tecnifibre jumped back into the fray with Black Code 4S a new take on their Black Code poly that features a square profile and is designed to provide maximum spin power and durability all while offering excellent tension maintenance.
Once I got to the courts 4S was about what I expected from a geometric poly—spin potential was above average and feel was solid though not as crisp as I typically like. The flipside is that 4S felt very soft and was one of the most comfortable polys I've used in quite a while. Fortunately the soft feel didn't come at the expense of durability. I played past the 12-hour mark with my set and didn't break it though they definitely felt a little dead towards the end. As I've noted in the past I find that most polyester strings go dead and lose tension well before they snap though I'd expect that heavy string breakers may break Black Code 4S before it goes dead or gets mushy.
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