•A heavier frame generates more power.
•A heavier frame vibrates less.
•A heavier frame has a larger sweetspot.
•A stiffer frame generates more power.
•A stiffer frame has a larger sweetspot.
•A stiffer frame transmits more of the shock load to the arm than a more flexible frame.
•A larger frame generates more power.
•A larger frame is more resistant to twisting.
•A larger frame has a larger sweetspot.
•A longer frame generates more velocity and therefore more power.
•The string bed in a longer frame generates more spin due to increased velocity.
•Lower string tensions generate more power (providing string movement does not occur).
•Higher string tensions generate more ball control (for experienced players).
•A longer string (or string plane area) produces more power.
•Decreased string density (fewer strings) generates more power.
•Thinner string generates more power.
•More elastic strings generate more power. (Generally, what will produce more power will also absorb more shock load at impact.)
•Softer strings, or strings with a softer coating, tend to vibrate less.
•Thinner strings tend to produce more spin.
•Decreased string density (fewer strings) generates more spin.
•The more elastic the string, the more tension loss in the racket after the string job.