Every one likes to think they're tight-aggressive, because that's the accepted standard to shoot for. But I think from time-to-time we all fit into all the categories. And really, you should, if you're properly reading and adjusting to the table you're playing at the moment. If the table's playing like Stonehenge, it's time to go maniac on them for a while and drag a few blinds and small pots. When the lemmings start rushing toward the cliff, slow back down and pick them off. One of the greatest pleasures in poker is watching the table follow your leads like the Pied Piper, with you staying a gear ahead of them.