I think I would have been really close to our MNK this week in T8 had I not been handling mines. (there was about a 20 DPS difference between us) Think I'm going to get our 2nd BRD to handle those and try to remain stationary as possible.
I was neck in neck with our DRG who is usually not too far behind our MNK.
10% is an average over a long period of time. Even for a fight that can go up to 11 minutes in the case of Avatar (we took 8:30 to kill btw) you can have a wild streak of Firestarter procs that can really boost your damage output. This week I had a 50 DPS increase over my previous best attempt in T8 as a BLM, and I still think I could have done more had I not been dealing with mines.