LOL - I also undertand, even with only four strings, that sometimes you just want to use the scale forms that you know really well, and when someone hits you with F# - you just don't wanna be bothered with it! So you sslap on a capo! Guitarists have it easy, everybody uses a capo, and for lotsa good reasons ... why the hell shouldn't a bassist?? Even, God willing, and string bassist!

;-)