thanks to all, guys. anyway, i finally had the chance to use a real Original Floyd Rose trem for a swap session (instead of the Schaller Floyd i used earlier, that i thought it was pretty much identical in sizes and shape), and i ended up re-editing the whole Trems Compatibility page, and these are the updated results (ordered by cavity type):
on IBANEZ EDGE-III cavity:
• Ibanez Edge into Edge-III cavity:
NO
• Ibanez Lo-Pro Edge into Edge-III cavity:
NO
• Ibanez Edge-Pro into Edge-III cavity:
YES
• Original Floyd Rose into Edge-III cavity:
YES
• Schaller Floyd Rose into Edge-III cavity:
NO
on IBANEZ EDGE/LoPro EDGE cavity:
• Original Floyd Rose into Ibanez Edge/LoPro Edge cavity:
YES
• Ibanez Edge-Pro into Ibanez Edge/LoPro Edge cavity:
YES
on IBANEZ EDGE-PRO/EDGE-PRO II cavity:
• Ibanez Edge into Ibanez Edge-Pro/Edge-Pro II cavity:
NO
• Ibanez Lo-Pro Edge into Ibanez Edge-Pro/Edge-Pro II cavity:
NO
• Original Floyd Rose into Ibanez Edge-Pro/Edge-Pro II cavity:
YES
• Schaller Floyd Rose into Ibanez Edge-Pro/Edge-Pro II cavity:
NO
on Original FLOYD ROSE cavity:
• Ibanez Edge into Original Floyd Rose cavity:
YES
• Ibanez Lo-Pro Edge into Original Floyd Rose cavity:
YES
the TRS/LoTRS/LoTRS-II cavities are not covered as ANY Floyd licensed trem (except maybe Kahler Floyds) can be easily installed in those, no works needed.
pics
HERE