I've used a number of racquet stringing machines over the years and I'm really proud to be stringing these days on a Prince Neos 2000. An absolutely superb machine.

Using a Microsoft Access database that I designed myself, I keep a record of every racquet stringing including such data points as the pulling speed, the tension and the tensioning mode. The goal is to be able to offer you the utmost in consistency from stringing to stringing.