If you are on iOS 6 with anything but an iPad2, you can't downgrade. And, in order to downgrade to iOS 5.1.1 from iOS 6 on an iPad2, you must have the SHSH blobs for iOS 5.1.1 AND the SHSH blobs for iOS 4 (any version).
If you have an iPad2 that meets those criteria, then you can downgrade if you choose. However, that would be a decision only you can make.
If you have any other iPad, then I'm afraid the decision is out of your hands because you can't downgrade. In that case, I can only suggest you hang in there and keep an eye on this thread for the latest news on a jail break for iOS 6: http://www.ipadforums.net/showthread.php?t=89458