Below I've put a post about system comparisons and after posting it I realized that there was something wrong in one of the system's description. The "Revere Adv. +/-" posted is actually the "Revere Adv. +/- /A". So the SCOREs listed include the side count of aces for betting purposes.
Here is the complete table again including the "Revere Adv. +/-" without a side count of aces. Sorry for the mistake. 

                 1-4     1-8     1-12    1-16    1-20 

Cac/71          10.52   27.68   37.18   43.06   47.07 

Hi-Lo/A         10.80   27.77   37.02   42.69   46.55 

Cac/7           10.36   27.39   36.86   42.74   46.74 

TKO             10.41   27.41   36.81   42.64   46.59 

UBZII           10.79   27.72   36.61   41.92   45.43 

Hi-Opt I/A      10.25   26.69   35.66   41.16   44.92 

DRed7(R)        10.17   26.65   35.38   40.63   44.11 

KO               8.62   25.52   34.94   40.69   44.55 

Hi-Lo            9.61   25.83   34.84   40.43   44.24 

Uston +/-        9.39   25.32   34.28   39.82   43.59 

Rev.Adv.+/-/A    9.53   25.27   33.92   39.23   42.83 

Griffin/A        9.34   24.94   33.57   38.89   42.53 

Silver Fox       9.13   24.71   33.37   38.76   42.41 

Hi-Opt I         8.22   22.45   30.32   35.18   38.44 

Rev.Adv.+/-      7.64   21.30   28.91   33.58   36.77 

Ace/Five         ----    1.65    3.26    4.43    5.34


As you can see, the system that Revere sold at $25 was really very weak in comparison to what he published!

Sincerely,
Cacarulo