Who has one? Alternatively, who has a Fix'd and/or a Musket? I know you cannot have both sides engaged at the same time with the Twosome - does anyone have the two pedals separatley and stack them? Is it better to have them separately? Does the Twosome (or the Fix'd or Musket) need to be first in line? This is pretty important to me - I really need it to play nice with a buffer. The ProGuitarShop demo makes me want this pedal quite badly. I think it might replace my Mayo (Musket) and give me something I don't have already (Fix'd). Any and all opinions welcome.