I personally found that reaching "VW bumper" as far as possible (and then extend forward even more) helps create the feeling of high elbow vertical catch. Not sure about timing though.
I wish I could film myself underwater and then show you, ZenTurtle.
IMHO Asian guy rocks, thank you for the video. My untrained eye does not reveal the scooping of the hand, I only notice that he does not spear as deep as most of TI coaches I saw, including Terry and Shinji.
To me, catch phase looks similar to Alexander Popov's catch here: https://youtu.be/tgmpPFDN7oI?t=287