Videos - Battlemage and Wildhunter

Few questions:

Is the item grading system officially in KMS now? Is there anything different from that in KMST than the official KMS version now? What's the duration on auras and how can you have multiples of them, from the latest videos the wild hunter has all 3.

-Yes
-I am not sure. I heard they were going to make it harder to make crazy stuff, but I'm not an expert in this area.
-There is no duration. You have the aura so long as you're within the 250% range of the Battle Mage, and you don't have it if you're not in the range. So two Battle Mages = two auras theoretically, but I haven't personally tested this.

There is a glitch where auras don't disappear after the Battle Mage leaves, in KMST. I assume it will be fixed at some point. But for now if you get an aura, you keep it until you log off.