Well, it would probably be Hi Opt II with an ace side count.....but it isn't easy. The ace side count is the important part (from what I have heard) about DD games, you just position your feet (or something else you can remember) based on the number of aces dealt out and use that info to vary your bets and such. I believe the book containing the info about HI Opt is "The World's Greatest Blackjack Book" (as seen in the Hangover).
I would wait for more experienced member to reply before going with this advice though, I could be totally wrong here.