[Uppndownn]

Austin, Shauger, and Dunaway all say they are releasing from the top in a underhand motion.....right hand under left and OMG . Left wrist breaking down.......somewhat anti TGM.....

I think back to Thomasello's letter series videos where he says release the club from the top......but on video it will look like one is delaying the hit.
Perhaps the video frame by frame gives a false impression, as TT alluded to back in the day.