Seems to me a lot of work for nothing. I use a capo often and as stated, it has it's use. But as far as chord sheets go, why not transpose the song in the key you want to play it and save it and or print it out so the other band members can use it. You can retain the old version. Just save the new transposed version as "Foggy Mountain Breakdown_Key of C.sgu" or something like that.