threeseatercouch
New User
I copied the data from TWU university string performance database (https://twu.tennis-warehouse.com/learning_center/reporter2.php) for string stiffness and put it into a Google Sheets Pivot table you can see below. For each Reference Tension 40, 51 and 62 you can see the average stiffness changes for each string material. The data is for the fast swing speed option.
Interesting that the difference for Gut is so small - between 40 and 62lbs the difference in stiffness is only 5.4 percent while for most others it's in the thirties. I guess you get what you pay for with gut. Not surprisingly Poly is the highest stiffness however it's if you look at the individual poly strings in the database there's actually quite a lot of options for polys in the more arm friendly 110-150lb/in range if you don't mind dropping the tensions to 40lbs (even though the average at 40lbs is quite high)
Anyway thought people might find it interesting.
Interesting that the difference for Gut is so small - between 40 and 62lbs the difference in stiffness is only 5.4 percent while for most others it's in the thirties. I guess you get what you pay for with gut. Not surprisingly Poly is the highest stiffness however it's if you look at the individual poly strings in the database there's actually quite a lot of options for polys in the more arm friendly 110-150lb/in range if you don't mind dropping the tensions to 40lbs (even though the average at 40lbs is quite high)
Anyway thought people might find it interesting.
