[woodguy]

Are you changing gears at all?

Letting an orbit or two go by without playing so you can get some credit when opening again never hurts when you have a lot of chips.

I had and still have this problem, and I think the other poster is right in that if I keep playing aggro and don't slow down it puts a big target on my back.

I try (often fail though) to try to "che-cycle" my aggression.
Play aggro until I get played back at or show down a winning hand that was "speculative", then tighten up a bit until 2-3 orbits go by so I have some credibility when opening or I show down a good hand, then crank it back up until they start playing back again.....slow down again.....etc.

Regards,
Woodguy