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I've gotten some purple armor charr drops in pre searing. One has something of swordsmanship in the name and the other has nothing other then just being purple. Im guessing it is in my best interest to hang onto these until post searing and use the expert kit on them? If I tried a salvage kit in pre sear and somehow got the rune, would I even be able to use it yet?

hold on to it for the fun of what you might get