Has anyone ever tried to use a different brand of hard disk in an HP Ultra320 hot plug cradle? The only sizes available from HP are either 146 or 300... nothing higher. I tried putting in my own SCSI drives in the first generation of HP hot pluggable hard drive cradles and it kept on failing. I think they have special firmware to work with their RAID controllers in their hard disks. Does anyone have anyone experience doing this? Any shared knowledge will be greatly appreciated.