system

Hi,

I have been playing for a full month under these conditions:

8 decks, 75% penetration, DA2, DAS, S17
$10 at counts of 0 or greater than -1
Stay out at counts less than -1
$25 at +1
$75 at +2
$150 at +3
$200 at +4 or higher

I played about 300 hours and made about $3000 in one month. I'm disappointed in the results, and think I should have made much more. I'm using hi/low. Any suggestions?