This would appear to be a Non Auto Left Wrist Throw. Does it have anything in common with the Mike Austin "power throw". Where is it different? Is it a "powered" throwout albeit in line with what CF would do, or a tipping point deal, a mere trigger to CF throwout. Did Homer describe a "powered" Swingers throwout of #2 angle, an "active" hammering so to speak?
Whatever the heck it is I love it and remember fondly the day Lynn taught it to me (at the Swamp, Bagger was there too as I recall). Id say its primarily a Swingers thing, Left Wrist Throw from my personal experimentation but I have a bud who does it with his Right Hand or so he says, he is for sure more Simultaneous in Release.