I will be attempting to load the U5 image to my drive later today. Unfortunately I do not have a spare drive, so I will have to load it on top of the factory hard drive. Will I need to use the -s 127 option, or do I need to leave it off. In reading Ingineer's instructions, he stated that if you're using the original drive, to remove the "-s 127" option, but that was assuming that the original drive already had U5 software to begin with right? Since my drive does not have U5, does the same still apply for me?