Most people don't defend their BB nearly enough facing a raise from the BB. Against someone with a wide range, in position, getting a discount and closing the action, you should defend even more hands than you think you should.

If someone folds too much in the BB, I just raise anything I want to play in the SB, but against tough players I've started open limping a lot. The reason is I think even hands as strong as A9o, JTo, 56s etc. may not be strong enough to open-raise profitably against a good player. Instead of just giving people 80% walks though, I like to open-limp some hands. Many people's first reaction is to assume I am a weak player and raise with ATC, which isn't a bad thing at all for me as long I mix in some limp-calls and limp-reraises with strong hands and some limp-reraise bluffs.

I still don't have nearly enough evidence to say whether this strategy is good, but this thread is for talking about the dynamics of open-limping the SB, and for posting standard and non-standard hands that come up.