You're welcome

I was amused by the thought of "I also find it useful when playing with others to capo in a different place than them so as to create more harmonies/counter melodies." - if they were, say, playing in D and you capoed at the 6th fret and played an A shaped chord, is that useful? I have a spare mandolin that I use like a frying pan to hit people round the head with when they do that. (I'm only kidding)