I wonder what would happen if the G key in question - i.e., the place where the do-nut goes, were an open hole key. Would this have the effect of venting the key and possibly eliminating the extra volume referred to in the following quote? --> "the presence of the duplicate tone hole creates a volume bubble in the center of the instrument. Some people seem to notice benefits from the donut of partially removing some of that extra volume."
Thanks for any suggestions...............Ugo
Thanks for any suggestions...............Ugo