Hi! I also have a question about this. I just recently got an ipad and with my noobass just downloaded the ios 6 version without thinking. Now im finding out there's not a jailbreak yet for this version so I would also (like everyone else probably) downgrade to version 5.1.1. But this doesnt work without the shsh blobs. (Which I obviously dont have cuz I just connected my ipad 3 with ios6 for the first time to my pc today).
Anyway! What my actual question is, (and im afraid I already kinda know the answer) is it possible to downgrade without the blobs? Cuz I stumbled upon a dutch website that says it is.
It says when you download the right ipsw file you can do a restore in itunes and it should downgrade. But Im afraid to do so cuz I dont know if this is a legit method or not.. ?