Metagame issue: cap a LAG who is in bb, when we're in position?

[Lmn55d]

I don't think capping liberally is going to significantly dissuade him from 3betting you. To the contrary, it will often piss him off and make him 3bet you more.

I would cap with hands that I think have a big edge over his range. I'm talking about hands like 88+, AJ+, etc. With hands with a more marginal edge (A6, 44, KQ, etc.) I often just call and give him the initiative. Initiative against LAGs really isn't too valuable (Elindaur had a good post in midhigh a little while ago about whether initiative is inherently valuable).

If I just call his 3bet with A9s, I can let him bluff 3 streets on a 3487J board if I want or raise when I hit. Capping the flop lets him checkraise you whenever he wants and put you to a tough decision in a bigger pot. I actually like giving lags the initiative when I'm in position because it excites them so much! They're gonna take this sexy initiative and always fire 3 barrels into you.