Thanx, Neville,
There was and is no “minhag” in this issue. Why didn’t this “minhag” disrupt the KGH eruv? The Chicago one? The Boston one? Each of which had people who disliked it.
The “minhag” in Europe was always to make. The minhag in America was that many rabbanim over the past seven decades tried to make. Some succeeded. Some didn’t.