@audiophilejunkey Check the return policy footnote on the Theoretica Bacch4Mac Web page. It states in black and white that the return window is 14 days from their ship date. That being said, Edgar readily gave me 14 days from implementation.
I suspect that my experience at Axpona was unfortunate. I say that because on Friday I got to the Theoretica room about 11am. I was only there a few minutes when Edgar had to leave to give a presentation downstairs. I don't know who was left minding the shop, but there were no a/b demos or individual calibrations. Judging from the comments above I think that I unfortunately missed the more revealing demo Edgar was doing. I wish I'd known as I would have come back.