MP Tennis & Sports

Strings for tennis and racquetball are a lot like rubber bands. At impact they give, stretching out, then snapping back, returning the energy to the ball. The more a string can be made to give at impact, the more energy goes into the ball for more power.
Softer, multifilament strings are more elastic and will give more. For players who want more power and depth on their shots, these strings are a great option. In addition to the added power, they also absorb more of the impact, making them easier on the arm.
Poly strings are less elastic, and therefore have less power for most players, For the really big hitters who can make poly strings give enough, the power can be great. 
The other thing strings have in common with rubber bands is that over time, they lose the ability to "snap back". After a while, a rubber band left stretched out will not snap back. Tennis strings are the same. After some time, they will not return as much energy to the ball, causing a loss of power and depth on your shots. For harder hitters, this will happen quicker, but eventually, this will happen with all strings. A good rule of thumb is to restring after a six months to a year if the strings have not broken, as they will have lost a good deal of the "snap back" and the performance will have dropped.
Not sure you're ready for a new string job? Stop in and we'll be glad to help, and if needed, help you pick the best string for your game.