Those are the moves that Billy Robinson used as a "pro wrestler" - which he did for many years. But they are more "for show" than for anything else.
But on the mats behind closed doors, Billy had the reputation (as did two of his contemporaries, Lou Thesz and Karl Gotch)...as being a true submission expert - which, oddly enough within catch circles: one with those skills was known as a "HOOKER"...
the original idea behind that name being that they could "hook" you into a number of various submission holds.
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Btw, Lou Thesz used to talk about the abdominal stretch in
REAL, LEGIT catch wrestling as being a hold that can best be gotten when on the ground -
ie.- the very same move that Eddie Bravo now calls the "TWISTER" ...which, btw, he submitted Royler Gracie with.
The "Abdominal Stretch/Cobra Twist" - as it was known within pro wrestling circles, was done from a standing position (ie.- not very likely to happen against a skilled, resisting opponent).