Reprinted with permission of the United States Racquet Stringer's Association
EDITOR'S NOTE: The following information was supplied by USRSA Technical Advisor Steve Davis. When Steve's not technically advising the USRSA, he's directing Research & Development for Prince Sports Group. We think it's safe to say that Steve knows his basic racquet and string facts.
Note that these facts are presented as generalities - and certain variables or modifications can alter the norm. For instance, a stiffer frame generates more power (Basic Racquet Fact #4), although a stiff frame badly strung may generate less power than a more flexible frame properly strung for power players.
Also note that the statements below are relative. When we say a heavier frame generates more power, arbitrarily adding weight to your frame isn't going to necessarily give you the power you need (and adding too much weight could sacrifice maneuverability). Note that other factors come into play. If you're interested in more power, try adding weight in gradual increments...say 3 or 4 grams at a time. So, basically speaking:
* Although Wilson's research for their Sweetspot string disputes this statement.
**Pre-stretching aligns (stretches) the polymer chains in the string and "sets" the string, which reduces tension loss, albeit slightly. Generally, the more pre-stretching (prior to stringing) the less tension loss after stringing.