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?

Thanks
CFC