This probably won't be accepted, but I was thinking of a way to make it more fair to people who have bought multiple ranks.
Ex: Someone bought Iron, then Diamond. If they bought Iron in the past, they should be able to use the ITools and Iarmor kits as well as DTools and Darmor.
Rules about it: If you buy diamond and emerald, this should be your kit loadout: Serverbooks, XP, Elytra, Darmor, DTools, Etools, and Ermor. You cannot have two kit xps, and if this needs to be balanced you can increase the kit cooldown on previous bought ranks by a couple days.
This doesn't mean if you