I'm going to take a wild guess and say that mod comes with a customize_item.asm_pc
Yes..Is it possible to make both mods work?
As for the crash after switching characters, I've not seen that but I'll test it later.
Game crashed when i tried to switched to Kinzie after switching to GAT....You can switch to GAT from Female Boss but if you to try switch to Kinzie again then game crashes....
And ya, you were right about Elegant Couture outfit being buggy . Man, why they changed the cloth animation