A few people have talked about crafting 400dps rogue weapons. Where did you get your schematics to do so? I'd love to get a t3 masterwork onehander schematic, but so far no luck.
The schematic for the double blade mastercraft daggers is retrieved from completing the dwarven ruins quest in The Hissing Wastes, if you have all the camp waypoints already it will probably take you about 30 minutes to complete. If you don't...enjoy the 2 hour run around.