Copied the data over to the G4's hard drive, then reformatted in Drive Setup under 9.2.2. Made sure to set it up as HFS and not HFS+. Renamed the partition, then copied everything back over. Reinstalled the drive in the 950, and everything's working as it should. Ran the machine for a couple hours. No issues, except for some extensions that weren't playing nice. Once those were disabled, it was rock solid. Now just need to create a ROM SIMM that bypasses the memory check. Might also chuck in the code for the Mac II series guitar chord startup chime just to confuse people.