Well, as for calling raises with low pairs, a flopped set isn't going to get sniffed out often enough to give you -EV when you do it against high stacks. People at the final table of the WSOP will even pay that shit off enough to make it worth doing.

I assume no knowledge or solid reads - so no "playing the player" answers please!
You're really skinning the sheep on this one. It has everything to do with playing the player. How else do you know what kind of hands your opponent is willing to raise, and subsequently whether your hand is possibly ahead?

Anyway, if you're playing straight TAGG with no reads than just get a chart and live by it. Only call raises with group 0-2 hands. Never call a raise out of position with less than a group 0 or 1. Never limp in if it's folded to you preflop. Raise or fold. I know that's not exactly classic TAGG, but you gotta mix it up a bit.

I hope I helped a bit. Work on reading people. You can't move up stakes with a chart and no reads.