Welcome! :joker:
KO is pretty easy and yet decently powerful (for shoes particularly). This has been stated before regarding people starting out with KO, but if you want to use it, you're going to have to buy the book
http://www.amazon.com/Knock-Out-Blackjack-Easiest-Card-Counting-Devised/dp/0929712315
It's not a big investment, and you aren't doing yourself any favors by not reading the original source. Afterwards, there are plenty of people here who can help you improve your game and perhaps "take it to the next level" or advise you on some more advanced counts.
Sorry if that sounds callous for a response to your first post, don't want to come across as mean. But no matter what system you use, be it Zen, KO, etc., get the full original publication because otherwise you are going to inevitably ask questions which will already be answered and obvious to you from the book.
Like I said, we are more than willing to help your game, but you must help yourself first