I am trying to upgrade my gear now but I ma getting confused,

Craftsman
Magic Craftsman
Control
Perception
Output
Gathering

My geuss is the first 3 affect crafting, and the second 3 affect gathering. But what does each one exactly do?

Also some ppl suggested I wear a certain stat/element (i.e. STR when doing Black Smithing), does this work?

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Regarding the "Wait" command in smithing, I know its used to stablize the craft. How do I know when I need to stablize it (aka, when should I use it?)