Well, my point was that in such a small triangle, the angular differences between sitting straight and tall or slumping is exagerated, as is the LR image shift with just a little hrozontal movement. I don't know if a 1 meter equallateral triangle is common practice or not, It just seems it would focus the sweet spot to such a fine point that it would drive me nuts. In my case, to answer your question, they are six feet away, and pointed pretty much mid on to my ears, but I just never considered that to be so crucial. But from 3 feet it probably is.