I have went through all the steps and got CFW Rebug 4.81 on my PS3 now. I immediately realized my 75 gbs of space is not going to be enough. I have a 1.5tb internal hard drive on the way. My questions is, after I swap the hard drive out, will I need to completely redo all of the steps to get the firmware back to Rebug? So, would I have to redo the NOR/NAND writer, then install Ferrox, and then install rebug again?