[DanZ]

Your ideas are all good ones, you can sandbag more if it will work, since it is so expensive to play - it depends on the opponents.

But the 2 basic "universal" adjustments you have right on -

play marginal hands less, esp. draws, since it's so expensive to limp, and the pots will be more short-handed.

defend your bring in more - take a card off more liberally, and defend against stealers more often.

Good luck!