I have an iPad 3 CDMA that I just took back from iOS 8 back to iOS 7.1.2. I ran the latest TinyUmbrella and locally saved my SHSH. My question is, after Apple stops signing 7.1.2, will I be able to Jb using Pangu and if I decide to go back to vanilla 7.1.2, can I use TinyUmbrella to reinstall 7.1.2? No upgrading or downgrading, just going back and forth between 7.1.2, Pangu 7.1.2 and back to 7.1.2. Thanks!