I built one of these Equalette anchors using the rail on my mantle. Let's call the anchor points arrayed horizontally from left to right, A, B, C and D. What I found is that once the anchor is equalized by adjustment of the clove hitches, any movement to the left will begin to put all the load on B and D. Movement to the right will begin to load up A and C.
If A and B are vertical and C and D are also vertical in a square configuration, the anchor is now perfectly equalizing in the horizontal plane, but now it no longer equalizes in the vertical plane.
If A, B, C and D are linear in a vertical array then you have the opposite of the first case. That is perfect equalization in the horizontal plane by virtue of "pivot", but imperfect equalization in the vertical plane.
The last case is A and B horizontal with C and D also horizontal below A and B, again in a square configuration. This would be the best of all because self-equalization is more important in the vertical plane. Horizontal equalization can be built into the system statically because it is easier to anticipate direction in that plane.
Oh, crap, now I've done it. That was way too technical. What is the take home message for the Equalette? That if you build it in a single linear crack, put the pieces that "share a knot" relatively close to one another.