C-F-Bb = atacked 4ths, a wonderful sound in the right place, can see how you'd prefer the G-7/C for that.

BTW I think I'd likely call it a C9sus (in closed position, a keyboardist would likely grab the 4ths) but for a guitarist, well, you know, the chordshape might well be identified and grabbed quicker if it were called a Gm7/C for a lot of cats. Adding the x33333 on the chart would cinch it.


Enjoy,


--Mac