CVCX Hole Carding Simulation - Negative Expectation?

[PinkChip]

Playing optimally, you'd have about a 12-13% edge, rules dependent. Realistically, you'll be playing with about a 5-8% edge due to errors and by not making optimal plays that will completely out you. Constantly hit 19 vs 9 up or or surrender hard 18 and be "right" every time, you won't last long!

Yes, but this is already incorporated into the QFit Hole Card strategy, which is accessible in CVCX and CVBJ. I would never hit on Hard 18 or Soft 19 or higher, because this would be very obvious and look unnatural. But it is possible to stand on more own stiff hands and to double down and split more frequently versus weak dealer hands. However, I would only surrender stiff hands like Hard 12 to 16, and double down only on Hard 8 to 11 and not on Hard 4 to 7, also because these plays are too unusual. Besides, it makes no sense to hit, for instance, your Hard 17 just because you know the dealer has Hard 18, because most likely you will not only raise suspicion but bust your hand anyway, so it would be a useless give-away for nothing.