I think it is... gutsandglorytennis. com (no space)
Then the The Definitive Guide to Stringing Polys and Co-polys
Maybe referencing this... First of all, and perhaps the biggest obstacle to overcome, is to realize that poly-based strings are designed to perform best at lower tensions. We are talking a tension range in the 30′s – 40′s. The absolute top end of that range would be 52 pounds. Once you go beyond 52, you are entering the point of quickly diminishing returns. I realize this may represent a HUGE shift in thinking for many readers. In fact a majority of you are probably thinking of mailing me a care package of colorful Sharpies so that I can decorate the walls of my padded room, but it is not really that crazy. The fear of low tensions is loss of control. I can assure you from personal experience as well as experience with many local customers, that quality poly-based offerings, PROPERLY INSTALLED, give ample control at these low tensions. I PROMISE this is a true statement. In fact, when all elements are working together (strings/racquet/player) it becomes almost impossible to hit a ball long.