Herb, my other thought was that since I would only capo to one alternate position on the neck that I might get stick on dots and put them on what would become the 3rd fret to my eyes if I capo on the 2nd fret. It's just SO difficult for me to have my brain trained 2 different ways. I have a friend who plays her guitar in this weird tuning (from 6 to 1, DADGAD) and then picks up a different guitar in standard tuning and plays it. I would have to put myself in a place where I sit in a quiet corner and purge my brain of everything I know about the guitar after playing it since 1964. I have to play instinctively. If I have to think at all about what I am doing, I am 2 measures behind the rest of the band. I CAN play open tuning, like open D or open G or open E, when I play slide.

I imagine if I holed up and spent time I could learn the "split brain" thing but I really don't perform any more and if i am going to learn anything new it wouldn't be anything in music. Like I want to find a college that will let me sit in and audit wind technology classes so I can learn how to turn wind into electricity. Then do the same with solar. 59 years of music has been enough.