Sorry couldn't resist, it's that darn physics thing....it's never wrong!!
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OK ... glad it does.
When that technique works best is when the ladder is bucking clear out of the water .. love that stiff-armed diver hanging off it.
Holy smokes guys, seriously now, have you never been on a boat where the ladder pitched completely clear of the water as you were approaching to board? That is when the fins need to be on the feet, the hands free to grab the ladder firmly, not at the bottom but at chest height so the feet can get on too, and you can safely take the ride up into the air.
Maybe we dive in some different oceans, or different conditions, I'm not sure.
This is precisely why every diver on my boat has an SMB and air horn. If they do not have, we give for free...and we NEVER dive in four knot current !
I can assure you this group was not diving in a four knot current either.