Obsolete? There are still purposes of CC in HC games, such as when given a 9 v dealer 4 with a 3 in the hole. If you CC, you can determine if this is worthy of a double. Also, what if you miss the HC? The power of CC is synergistic with HC, it increases your advantage in HCing than it does in a BS game. Also, there are (apparently) true counts where even HCing is a -EV game. While employing even a 1-2 spread may be not worth the risk, I wouldn't say CC is obsolete. Just not really worth the effort (if it takes effort).