It say that it has 50% chance to get a bonus xp while crafting. Although when you discover a recipe it is 100% sure that you will get bonus xp. Does the bonus from the token stack with the original bonus from discovery?
If not, since that I skill up my crafting 90% with discoveries what do you suggest to do to get the full potential of these boost tokens? How should I use them for best results?
I am not 100% sure, but I am pretty certain that it applies to the bonus xp you get when you craft multiple items of the same thing. Once in a while you get (XP + XP bonus!) as you craft a stack.
I used a crafting xp bonus token the other night and I seemed to be getting a lot more xp for that 30 min than I thought was normal.
These work the best when you are still getting XP for crafting components, like wood planks, and runes. I use them when I’m crafting at a new tier, and have a bunch of mats saved up. I get extra XP for refing ore, cutting leather or wood into usable components, and making the runes to use in the discovery phase.
But as to your direct question, I have not noticed anything extra while using the XP boost during discovery.
I will use it once I get into the new tier and have lot of materials to keep it going!