Gear exclusion zone, nice. That would make a cool bass drum reso head....one with some kind of warning on it about how the bass drum owner is not responsible for damage to items placed in front of the bass drum. As an electrician, I have to maintain certain working clearances in front and above my panels. Nothing from the other trades are allowed to be in those zones. This could be a similar thing. Are guitarists considered a different trade?/ gear exclusion zone in front of your kit.