well , maybe Schaake would argue that 1252 or 1253 is not going to be called a constrictor.
first, if you slide it off the spar, it should be an unknot, not overhand or trefoil,
second, if you pull it straight, there should be no kink twist.
the real double constrictor , which suffices meet these two standards, is to follow that 1249 route again, so left two, right two ,and center one, perfectly balanced double constrictor.
tie it with a flat strip to find and avoid the kink