Babolat Pure Drive Roddick should be your best bet if you are a more advanced player...the others Im not sure
It depends on the type of racket, string, stringing machine and the experience of the stringer. I have strung one in 12 minutes, which was strung correctly and professionally. Some times speed is not the main objective, a professional quality stringi...
Place the string into the holes and across the racket, and then pull it with the weights, say 60 lbs. Fix the string, and repeat. The regular stringing machine nowadays are basically the same thing, but instead of actual weights they reproduced the s...