Isospeed’s Professional 17 gauge string is advertised to be the closest match to natural gut on the market for synthetic gut string. Along with Isospeed’s reputation among my peers as an excellent string manufacturer, I figured the Professional 17 would definitely be worth a try.
The Isospeed Power Ribbon technology is specifically designed to mimick the composition of a natural gut string, and by combining it with their tradition of pre-stretching the filaments in the string, it also maintains tension and aids in the durability of the string.
I strung up my set of Professional 17 in my racquet at 60 lbs, increasing my desired tension which is normally between 56-58 lbs when stringing with a polyester. When stringing, it felt fairly similar to an average synthetic gut, but with a little more of a “wirey” feel (slightly stiffer and rougher). But overall a fairly easy string to install.
With the first strike of the ball I was able to notice the comfort and playability of the Professional 17. The ball pocketed well and exploded off the string bed, provided great power and spin potential. The Power Ribbon technology gave the string a nice texture to it, which made it very responsive and provided me with excellent feel. As is the case with most synthetic gut strings, the Professional 17 was very soft and arm-friendly. However, it varied from other synthetic gut strings in that I was able to have a lot more touch and feel with it because of how responsive the string bed was. Every ball felt as though it was on the strings forever, which is a nice feeling! The only downside was its durability, as it only lasted me for a couple hours of hard play. However, this is pretty on par, if not a little better, than most synthetic guts that I’ve tried.
The Professional 17 string was probably my favorite synthetic gut string I have played with, perhaps along with the Prince Synthetic Gut with Duraflex. However, compared to the Prince Syn Gut, the Isospeed provided me with more touch and better feel, and also added durability making it, in my opinion, a slightly nicer string. At $10.99 a set, it is a little pricey, but the excellent feel that it provides along with the added durability definitely makes the Isospeed Professional 17 worth a try!