Is that possible? Using a USB stick? I have four brand new WD drives for my mac pro and a bootable USB with Mavericks, will I be able to use the option key to boot from the USB even though the hard drives are completely empty and probably in Windows format? Then should I format the drives one by one or can I have all four blank drives in when I first boot? And finally, is it a good idea to wipe the drives with one pass of zeros when formatting it to Mac OS Journaled? I heard it is good practice doing so for the first time in order to eliminate bad sectors and make the disk fail sooner than later if it was manufactured defectively or something?