I doubt Anderson will fight at 170
Anderson apperently walks at 210+lbs he wouldnt be cutting to 170 Id say the fight if it happens would be at 185.
what i've read seems to point towards GSP going up to 185 and staying there full-time. he doesn't want to bounce back and forth between weight classes. i think if silva cut to 170, sally strothers would be at the weigh in with a film crew asking viewers for their donations to support starving brazilians. he'd look sickly.
I guess that works too.Dana already mentioned if this happens it will be at 185. GSP will move up and vacate the Welterweight title. GSP mentioned needing 6-9 months for the weight adjustment but is willing to do so.