Allow me to disagree wholeheartedly with the anonymous buyer from England who wrote the previous
review. Julien's [S]Witch is different enough from Looch's switch, with which it shares only one
point: the fact that both billets are "merged" into one, which allows for showing the hand
apparently holding only a single billet. By the way, Colin McLeod also has a switch showing the same
feature.
But in all three cases, the choreography and the handling are different. Having tried
all three of them, I consider Julien's as the most practical by far (that, of course, is a personal
opinion and it can be challenged). But in any case, I think there is enough difference between all
three moves to consider them as independent items and to avoid starting a painful and sterile
discussion regarding the authorship of the concept.