I've got a book here that list all kinds of tunings various people havr used, and EADGAD doesn't show up, so maybe you've got a new one, nightbird. EADGAE was the nearest I could find - various people, including John Renbourn on occasion.

Sure, standard wasn't always standard, it caught on because it worked pretty well for the kinds of music people were playing on guitars, especially when they were playing along with other people. But there's never been anything sacred about it.

One question occurs to me, and it's for anybody out there who builds guitars - when people prefer to use specific tunings other than standard, should that ideally mean some adapotation in the way the way their instruments are built?