Putting Clover back allowed me to troubleshoot my DSDT edits a lot easier. I've just put Ozmosis back and my edits are working fine. Just have three mainly cosmetic issues to resolve:
VBIOS for my card needs patching to display full res boot screen (going to look into patching the BIOS and reflashing later as I don't think this can be done from Ozmosis) Done.
Memory showing as Empty in system profiler (DarwinDumper time I guess. Any modules in particular needed to troubleshoot this rather than uploading the whole thing?)
Can I inject the value for Processor Interconnect Speed (QPI) via nvram/defaults as well?
Also, this time it didn't empty my EFI partition. Maybe because I added the EnhancedFat and PartitionDxe files as well.