Novama
One Thousand Club
While the fast growth with copper rewards sounds appealing, someone who starts at iron would have missed out on nothing but the grind sounds like. Perhaps some other rewards like special affinities, items, or abilities would be good.
As for items, i have seen other systems that apply ranks to items. In this way low tier characters aren't swinging god tier swords. Other perks being the ability to upgrade and customize items as the grow.
Ex: copper tier jimmy gets copper tier trainee sword.
Jimmy gets to iron tier. He is permitted to have his copper blade reforged into an iron tier weapon as well as have it imbued with special ability property. Gold tiers would have their gold tier items but they would have missed out on the ability to customize the gear due to not having the same experiences with their items.
As for items, i have seen other systems that apply ranks to items. In this way low tier characters aren't swinging god tier swords. Other perks being the ability to upgrade and customize items as the grow.
Ex: copper tier jimmy gets copper tier trainee sword.
Jimmy gets to iron tier. He is permitted to have his copper blade reforged into an iron tier weapon as well as have it imbued with special ability property. Gold tiers would have their gold tier items but they would have missed out on the ability to customize the gear due to not having the same experiences with their items.