54 year old 4.0 line two doubles USTA player. Switched from Roddick Pure Drive to Nadel Aero Drive. Been using Techfibre 17 at 56 and just strung one with Babolat VS 17 at 56. OMG. I simply can not believe the difference. Since I play at a country club, I am already spend XX amount each month, heck, might as well add some more on. I can see it's not going to last long, but is it amazing. So a couple of questions for the gut veterns: 1) Should I go a bit higher on the tension? 2) How long will it last? 3) String savers??? do they work?? 4) Any other hints or help?