The ability to embed an eeprom in the X3 bios would be nice.
I use an eeprom embedded 4981(done with xbtool) and 2 harddrives (1 retail, 1 big) to make sure I don't get banned. The big drive is locked to the embedded eeprom, so the retail bios can't unlock it. That way the retail bios only boots with the retail drive, and the mod, only with the big drive. It also boots with different mac addresses, so I can block live traffic at the router, only when it's booted with the chip on. I figure you can't be any safer without buying a second xbox.
I use an eeprom embedded 4981(done with xbtool) and 2 harddrives (1 retail, 1 big) to make sure I don't get banned. The big drive is locked to the embedded eeprom, so the retail bios can't unlock it. That way the retail bios only boots with the retail drive, and the mod, only with the big drive. It also boots with different mac addresses, so I can block live traffic at the router, only when it's booted with the chip on. I figure you can't be any safer without buying a second xbox.