I see… You had never tied or loaded the two knots I had shown ! 
(1). Good for you ! Keep believing, it may help you …
“[i]In its most commonly accepted shape…”/i How much are you trying to be “[i]accepted/i” ! Only beware of the second part of the equation, the “[i]commonly/i”
I do not have similar needs, I am afraid. I had tied and tried the ugly tangly end-of-line Farmer s loop, and I know that it can settle in MORE that TWO forms, which are ALL unstable AND ugly, and depend on the proportion of the tensile forces applied on the four limbs, and the angles between those limbs. I have shown pictures of two such forms, OBVIOUSLY loaded - but, evidently, you prefer to keep your mind s eyes wide shut… You had never understood what is the difference between an in-line loop and an end-of-line loop, so why do you expect to understand anything beyond this elementary thing ? Now, WHY does this happen, and you have not understood ANYTHING about this matter ? Not because you can not, of course, but because you do not want to, and because you do not wish to - and you do not wish to understand, simply because you do not care, as you had declared time and again. If you just want to use knots only as means to your ends, and tie only the knots that will help you go climbing, you should expect that you may suffer some collateral damage…
If you can not appreciate how different those forms are, it is not my fault !
However, the problem is not that you can not appreciate the differences of those forms! The problem is that you can not even SEE those differences !
Just LOOK at those two loops, the structured Plait loop, made of two interlinked crossing knots, and this amorphous entangled octopus, the Farmer s loop, made of… you know what ! Actually, I am sure that you can see what the dis-figured, deformed end-of-line Farmer s loop looks like… No ? Then, you need to visit a farmer s ranch !