I agree, that's pretty darn good and a slight rock up will cover the first action. Getting it non-jerky is the hardest part if you ask me. I found that my wrists, elbows and all sorts moved when they didn't need to.
As you can see from the video (oh what a good idea videos are), you're pointing your index finger, which could draw attention to the fact that you have moved under cover.
Squaring is a great cover. I am quite sloppy with my replacement so "need" to square the deck.
Again, the beauty of the camera that you can do this ...
In one video ... first, show the card, then square the deck, with no pass. Then do that again a few times. Then do your pass version couple of times. Then do a few alternates. This way, when reviewing the video (which was such a good idea) you can compare the natural and pretend squaring in one sitting.
So then the exercise becomes making the pass look like a natural action.
EDIT: I've given up trying to improve my rather sloppy pass after realising that it doesn't have to be totally invisible if you just do it whilst chatting and not looking at it.
http://youtube.com/watch?v=IksSus5XncQ