I like the idea of a "give and take" system on equipment bonuses where you can adjust stats on gear without having to drop and re-quest it. It would be a nice system to have certain equipment be "more easily" modified than simply dropping and requesting, but I don't think that "old gear" should be exchangeable for new gear.

This kinda already works with the Omega/Ultima pieces merging with the Arch-Omega/Arch-Ultima pieces; so it would be feasible in some events... just not a blanket system.

However I think that some gear should just be left alone.