Hey dat, I use that poker trick all the time too. I also use a combination of culling and openly moving the aces to get the appropriate set-up so i can do it impromptu now.
Anyone wondering WTF we're on about can see a video I made a long time ago:
POKER TRICKS
It's a double video with my other favourite Poker themed trick "Riffle Stop Poker".
For those interested they can be found on...
Master Poker Deal - "Thirteen" by Andrew Murray
Riffle Stop Poker - "Complete Card Magic Vol 3." by Gerry Griffin