We used to market a software product for musicians called GigMaster, a database for performers to track and report on data relative to gigs. We once got a request for tech support from GigMaster user Luis Villegas.
In order to help sort out his data, he sent me his GigBook file. The first thing I noticed was that this guy was playing gigs practically every day! Honestly, folks, I wasn't snooping; I had to look at his data to help him with it ...but I sure was impressed with his work load. We had a slogan for GigMaster: Whether you play three gigs a year or three hundred, GigMaster was made for you. Well, Luis was making an honest man of me.
Gary and I got to know Luis on the phone and through emails, and discovered that, like many GigMaster users, he also used Shubb capos. A quick look on the web showed us even more about his successful career and his music.