Okay, so is it a secret, kept/unkept, that if you splay flat panels a good 4-5 deg, an incredibly good sound stage begins to appear? I have a pair of Monitor 3 Acoustats. 3 wire full range panels. They are equipped with the direct drive OTL mono amps. I've discovered after intensive experimentation, that with a Model 3 or Monitor 3(I have both), best result is achieved when the innermost panels are used for optimal toe in(by ear), with about 3 deg leaning back. I realized this incidentally while trying to help the inherent beaming associated with this design. Then I thought, would it break up if the panels, because flat, weren't vertically placed? So I started with a 1/8" wafer under the inside bottom edge. I immediately noticed a change. I incrementally increased the angle to 4.5 deg. I'm ecstatic at the result so far.