Let's just say, I have a nodding acquaintance with the GLEX. It will equal or use less runway than a GLEX, but I doubt it can operate out of KASE at 99,500#. It will not be restricted in TOGW there by an AFM supp to operate at 99,500.
GF
If you ask, "how do they enforce the supplement weight restriction?" Just ask for a clearance to Tokyo from SDL or a clearance to Paris at Naples; they can figure out that you are exceeding 75,000# pretty quickly.