Disagree, RS Lyon had average spin potential at best. Try a shaped poly like UC, Tour Bite and you will notice a huge improvement in spin over RS Lyon.The most predictable response of any string I've tried (RS Lyon is close). Low power but you can really swing out, and when you do, the ball drops right at the end of the flight - sharply. If one has good technique, this is the string. Something about the 16 gauge works too.