Adam had a post here something like '21st century sidecounting' a very good post indeed that made me do some digging. I also found a couple of good articles by Cacarulo on BJ21. All talk about the efficiency of ace side count. I wonder if it's worth the effort? If you are playing 6 or 8 decks, HiLo, is it worth the effort to keep an ace sidecount and adjusted with normal HiLo RC for playing indices. Cacarulo's studies showed that PE for most (not all) of the C22 indices, Ace is counted as 0, about 5 indices (Ins, 16v10, 16v9, 12v6, 11vA) PE is highest when Ace is counted as +1, and for one case, 10v10 PE is highest when Ace = -2. So if you stick with one side count value, I guess the best is Ace=0. But again you don't want to loose the 10v10 case, which can happen quite more often than the other indices. Already complicate quite a bit the HiLo counting systems, not to mention that I have to re-learn all the new C22 indices (engraved in my brain for more than a year now!). My question is Ace side count worth the effort? Standford Wong in his PB book recommands against Ace sidecount. Has anyone run some sim to find out if it is worth the effort?