well I got a batch of 05/2006 lot#040548179 and I've never manipulated polaroid before but it doesn't seem to do squat. I press firm and nothing, press harder and get black and that's having to really press hard. I am assuming my batch is bad, I can't imagine it being a good batch and having to press so hard for barely any result of some kind 
Oh well, guess I'll take some family snaps with it and seek a good batch on ebay..

Oh well, guess I'll take some family snaps with it and seek a good batch on ebay..