^^ exactly. This ties in to the concept of betting/raising a polarized range and calling/getting cheaply to showdown with your middle "fair" hands. So for example you could value 3b your nut hands, bluff 3b stuff like Axs and suited connectors and call with fair hands like AJ, KQ, small pairs, etc
There are two good threads I found about this idea:
http://www.flopturnriver.com/pokerfo...se-184826.html
http://www.flopturnriver.com/pokerfo...er-184365.html (attention, this one is math heavy, but you only need to get through the first two posts to understand the polarized range thing).