[betgo]

If you want action and you have 9xBB, don't raise 1/3 of your stack. Limp or miniraise from mid position. With AK, don't mind taking the blinds, but this is viable with QQ-AA.

It is better if you also limp with hands like suited connectors, medium aces, and broadway cards. Maybe you sometimes limp and fold to a raise. Then people get in the habit of coming over top of you. Also, you way be able to limp with marginal hands and steal the pot after the flop. If you are a better player than the competition, limping complicatres things.