I was just wondering if this was possible/advisable and if anyone had done it themselves?
Older Chimp versions, up until Chimp 261812 used the Gentoox loader. I never bothered to ask at the time about the other menu options there were and if they worked, including the Flash BIOS option.
As I still have archived and installed copies on a couple of less used Xboxes it seems like as good a tool to use as anything else but it is OK and safe to do.