I am about to head out to Reno where I read that there are double deck games. I have been playing only shoes up until now and have been using the HiLo count since I read that HiLo is almost as effective as the HiOpt system for multi deck games. I know that the HiOpt systems are better for single and double deck games. So I was wondering if it was worth the trouble of trying to learn either HiOpt I or HiOptII for the trip? If I were going to be playing single deck I would think that it would be worth it but I was not sure if it would be worth the effort for double deck since I read that HiLo is almost as effective for multi deck games.