Originally Posted by daved
OK, leave Lindsey and Cross out of it.
Have you tried full poly at low tensions in an open stringbed?
I have played with a POG OS for the last 3 years. Have tried nearly every possible string and tension combo. Mostly use full poly at 45 lbs. Very spinny. Spinnier than full poly at 60 lbs, which I used to use, or than poly and syn gut at 50 lbs., which I used for about a year.
I've also strung this racquet with the same poly at 30 lbs. Insane spin. At this tension, the "ball flattens more on any poly at any tension" argument falls apart.
At any rate, this is a fascinating question to try to solve. So many variables.
What's happening? Dwell time. The lower the tension, the greater the dwell time on the strings. More dwell time combined with more flattening of the ball means you can "grab" the ball more and for longer which will result in more spin.