Well, I followed every step to the letter and RootGenius stops at 77%, the tablet disconnects and goes through a rebooting cycle about 3 times, then I get the always-annoying "Such a tough phone, Root...failed".
All I want to do is root the tab...
I didn't read that. Thanks for the heads up! Soft bricking is exactly what I am trying to prevent. I just want to make a nandroid backup.