I have never had good experience with EA. Now I just attempt to hold both arms extended without pushing against the left.
I find that I have a reaction of pushing back, when I concentrate on pushing agains the left I wind up pulling the left arm back.
I probably just don't understand EA in spite of the time I try to understand and use it.
I am reminded of the lesson I learned as a boy on the farm. If a cow steps on your toe don't push against the cow or it will just lean back and step on your foot harder. Thats what happens to me with EA.