Over/Under 13

There is a casino,which have introduced the Over/Under 13 bet.I use KO positive(IRC=0) and would like to know how can I use this counting system for the over/under bet(I knew,but have never seen this bet before).I have read the system proposed by Arnold Snyder in his book"The Big Book of Blackjack"(A,2,3,4,5=+1;10=-1,IRC= -24(6D),you bet on over when RC=0),but I want to use one system,two would be too much for me,any advice?The conditions are:S17,DAS,DA2,ES10,ENHC and penetration about 70%-75%(initial disadvantage aproximately -0.26%)

The blackjack part of the game is much less important than the O/U part for counting purposes. Forget using KO or any other conventional count.

I don't know what the KO strike numbers would be for O/U, but it is a waste of time using a blackjack count for the O/U bet. It would give you very little edge.
You need something optimized for O/U.

As GBV mentioned in an O/U13 game you get over 90% of EV from the O/U13 side bet. There are three main approaches to attack O/U13 game. Snyder's report offer a level 1 and a level 2 O/U13 counts. SW introduces CRUSH count in PBJ. My personal favorite is Brett Harris' UBALO count. The UBALO is an unbalanced level 2 count and it is both easy to learn and has highest accuracy in predicting Over 13 betting opportunities. Most of the gain from the side bet comes from Over 13 betting opportunities.

I can provide you with other O/U13 games in exchange to your game. If interested, you can email me at shahtura@yahoo.com

Link below for a few different systems.

-Sonny-