Thought you may find this interesting.

Did you know that there is a company called Priority One who offer a service to all the tennis playersa round the World to re-string and customize their rackets.

The top players pay $40,000 a year for this service, and this company looks after 4 of the top mens seeds on the ATP circuit.

In the U.S. Open stringing room, each player’s personal preferences, from tension to string type to brand, are contained in a database. The average tension is 56 pounds, around the top of the manufacturers’ recommended ranges, for more control. Some even exceed that:

The highest string tension in the tournament belongs to Alexander Peya of Austria. He likes his racquets strung at a board-like 75 pounds. Just about all the players will use polyester or co-polyester strings that maximize spin potential either as a full set or in a hybrid combination of poly and gut (poly in the mains and gut in the cross strings for durability or the reverse for more touch).

Only about 10 percent of the racquets at the U.S. Open are off-the-shelf models. The rest have been weighted and adjusted to their users’ personal preferences. Eighty percent of the racquets have head-light balances and the average beam size is 20–22 millimeters. The thickest is 24 millimeters and the thinnest is 17 millimeters.

Quality of work is essential, as the pros are trying to peak at the last Grand Slam of the season. Winners on court each day will return to the stringing center, where their strings will be cut out and replaced the night before their next match. Losers go home with the small consolation: They’ll be saving themselves $120 a day, the cost of stringing four racquets at $30 each.

There are a few notable exceptions—Kim Clijsters, Venus Williams and Arnaud Clement still use full gut in their racquets. The overwhelming brand favorite among the poly users is Luxilon, which is marketed by Wilson, though Babolat RPM Blast, which debuted at this year’s Australian Open with Nadal, is rapidly gaining ground on Luxilon.

The stringing team is handpicked from the best in the business. They come from Japan, Croatia, Russia, Hong Kong, the Czech Republic, Australia and Argentina, as well as the United States. The average time it takes them to string a racquet is 20–25 minutes, 18 if it’s a rush job (13 minutes is the record). The team works from before dawn to dark and even beyond if needed.