I confess to being a bit lost on position, but if the predictable TAG raiser is in the CO, I'll make the preflop call getting 5:1 against the range of a possible steal. If his raise came from UTG or MP, I'll fold preflop.

The only reason I'd make the flop call is if you think the TAGs are trying to take shots at you. In that case, see if a Q comes on the turn. If you're leaving soon anyway, fold.