I've always wanted to unbound some junk I don't want but there is no possible way to make it fair.
So I suggest a feature to [b]Dismantle[/b] Gears to regain the mats used, but I guess giving it a catch would even things up.
These should be the conditions of dismantling gears:
-[b]You will not receive the energy and crowns you spent on the item[/b]
-[b]Dismantling could be free or cost minimum energy[/b]
-[b]If you dismantle an item that uses another gear, you will receive it but the level will reset and it is immediately bound[/b]
-[b]You can only dismantle items that have known recipes[/b]