Hi Scott,
I`m not even going to attempt to give any advice , your knowlage of chord therory and structure are much greater than mine, but I can tell you that I too have had the display show the wrong chord (IMO)
If you try playing a song like "For Once in My LIfe" or "Whiter Shade of Pale" the "Y2K" never displays the actual chords/w-bass note properly.
So I just keep playing the way I always have and just consider the display a "bug of the beast"

O-BTW, I have visited your web-site on several occasions and every time I try to download "Don`t Let the Sun" (mp3) I can`t use it , for some reason it downloads as a "document to large to be opened by simple text"
Is it my "Mac" I can download other mp3`s? Thanks for your help and best of luck with your 2000 but I relay think it`s the "nature of the beast"
jedi