Interesting timing... I just finished my speaker placement and I have to say that the Cardas Golden Progression method was what I used as a starting point....
My final placement was just a few inches closer to the side wall but the distance to the back wall was right on the money based on their multipliers.
My soundstage is wide and I have layering of depth. Imaging is good too! But... the best thing that I was able to gain from this setup is a very robust bottom end. I had problems with suckouts and this has gotten by room pretty flat across the frequency spectrum. I ran some sweeps with my trusty XTZ Pro setup and I am pretty happy with the result.
Of course YMMV.
My final placement was just a few inches closer to the side wall but the distance to the back wall was right on the money based on their multipliers.
My soundstage is wide and I have layering of depth. Imaging is good too! But... the best thing that I was able to gain from this setup is a very robust bottom end. I had problems with suckouts and this has gotten by room pretty flat across the frequency spectrum. I ran some sweeps with my trusty XTZ Pro setup and I am pretty happy with the result.
Of course YMMV.