IOS 6.1.3 to 6.1.2 downgrade, possible with blobs?

I saw a tutorial on how to do it with blobs that was released today. I was wondering that since it is possible, if I can use someone else's 6.1.2 SHSH blobs? If it is, can someone send me theirs via email?
(I have an iPhone 4S)

No it will not work at all. Each iPhone has their own and different SHSH blobs.