I have jailbroken iPhone 4(GSM 16gb) on iOS 7.0.4 . I want to try the iOS 7.1 and I have only one iPhone.If I install iOS 7.1 on my iPhone, is it possible to restore to iOS 7.0.x. I haven't update to 7.1 because I'm not sure and don't loose jailbreak. I want to try because it seems to be faster than ios 7.0.x. Is it easy to restore to iOS 7.0.x. I heard about the SHSH Blobs.I don't know it very much.and I want to save tweaks and apps .So I can get the 7.0.4 back with jailbreak if I don't like ios 7.1