QUOTE="Kiiro, post: 5377137, member: 9409"]G4 is still too OP for it to not have a drawback. Lets say he can use it for 30 minutes, but after it still uae haki. If not, Gear 4 can already defeat top tiers imo.
Physically it defeats anyone. No one has the momentum Gear 4th has. They might win if Luffy doesn't use CoC or AdCoA to add different attributes for Kaido, but powerwise it doesn't.