apple makes me worried about updating to newer software especially if I have no access to certain betas or for some reason I didn't try that certain version. The first time I've heard about shsh blobs was in 2013 when I wanted to downgrade my iPhone 4 but I couldn't as I didn't have the blobs, now I have my iPhone 5s and iPad 4 and I'm a little worried about how the next updates are going to be and a question that always comes in my mind (can I downgrade? What if apple doesn't sign older versions anymore?) so, I just wanted to know if saving the Shsh blobs going to save me in the future "if I'm stuck with a certain iOS" ?? If yes, How to save them ??