Hey Fort, what Bill left out out was that now they make him go into another room AFTER he's tuned!
I really like the tuners with an actual arrow, rather than LED lights. Kind of lets you see how things are progressing. I use a Seiko, which is the quickest and most accurate I've owned. I think you can make one of the clip devices. Just a guitar plug, wire and alligator clip. Sandy gave me his and it works great.