Hi, I'm new to this board so if this question is redundant please forgive me.

I play K.O. strategy but I've noticed a difference between the BS charts published by Vancura & Fuchs vs. charts published by others, for instance, Semyon Dukach. Specifically, in KO BS you never split 2s or 3s against a dealer's 2 or 3 where in other charts you do. In KO you always hit, never split 4s, vs. splitting against dealer's 5 or 6. 6s, again in KO you do not split against the dealser's 2.

So, my questions really get down to the effect on KO performance by following one BS over the other. Is there a noticable difference and if so, which is the better strategy to follow?

Thank you

Bruce