Good idea.
SCOREs for your game parameters, 2 decks, 1-6 spread, DAS, H17, LS, 0.7 pen, (Let's keep it real.):
Full indices used. Spread auto-optimized by CVCX.
Balanced Zen: 73.03
HO2 with sidecount: 71.92
HO2 without sidecount: 66.47
The surrender rule slightly raises the EOR of the ace for the player, being he can take some of the power of the dealer's ace away by surrendering against it. This effect makes not counting the ace for betting ever a worse decision with the LS rule in play. And when we are getting into very high counts and their associated index plays, the ace starts to behave more like a high card than a low card for for playing decisions too, so the Zen counter doesn't lose much PE by counting it as half a 10.
Would it be too much to ask you to go back and correct your graph before you mislead the rookies into thinking they are better off using HO2 without a sidecount, than Zen?