Any 2 suited in SB @ 3/6? (I already ran a search)

[kiddj]

I skimmed through SSH, HEPFAP, and some other crap book I own and I ran a search here for "+3/6 +sb" over the past year.

In SSH, it advocates playing any 2 suited from the small blind (unraised), but it provides no discussion regarding the $3/6 blind structure.

What odds does the pot need to be offering to make calling the extra $2 with any 2 suited +EV? (I am planning on playing at a B&M $3/6 this weekend, so this question is geared more toward crappy B&M play.) Thanks!!!