Hi Lo is okay-can convert to Halves
Well, I appreciate the opportunity to weigh in on this...these forum are one place place I can talk (who knows someone may pay attention!)
I play for entertainment & I use Hi-Lo. I have experimented with halves and AOII...I found I had difficulty in the casino with these despite hours of successful play on my kitchen table. I had to swallow my pride and go back to Hi-Lo, but winning some $$$ soothed my bruised ego.
Buy Blackjack Attack, you can get some comparisons of the performance of the various systems.
Hi-Lo can be souped up, by encorporating side counts (aces sevens-nines), to increase its insurance & playing efficientcy. Its betting efficientcy is very good without the extras. Thus, if you wish to complicate your system, you can approach the performance (and complexity) of the other systems.
Also, Hi-Lo is a close cousin to halves, and the stategy tables to Hi-Lo can be used without much decrease in performance if you are using the halve count system. You might try that in single & double deck games.
As I play mostly in Vegas and for small stakes, I usually play multi-deck games, and Hi-Lo is well suited to those games. When I play singles, I add the strategy variations as per Stanfor Wong's Professional Blackjack to get a little more edge, and try to factor in the ace counts sometimes.