[Wynton]

I don't think this is entirely for metagame purposes, but also for the sake of figuring out how to play the individual hand against the TAG.

I agree that the cap is not for value, as I assume a Tag is 3-betting here with pocket pairs and AK, AQ, and perhaps KQs, QJs. But because this opponent (at least the way I've described him) is capable of folding AK, the preflop cap might provide some advantage.

Again, I haven't been capping here, but just contemplating whether the possible benefit might be worth it, not even taking into account metagame factors.