Hi, I am planning up upgrading my S2 DTivo to 6.4a using an instantcake image. I also want to run zipper on the drive for the hacks/tweaks. So my question is kind of a silly one.. Can I run Instantcake on the drive and then run zipper on the drive right after, without plugging it into the Tivo and booting up after instantcake? Or do I have to run instantcake, then put the drive back into the tivo, power up and run setup, and then pull the drive to run zipper? The reason I ask is I have the drive and the software with me now, but am not at home for another week so I don't have access to the Tivo right now. I wanted to upgrade the drive and then just go home and plug it in to finish everything up..