Monk - epic fists at level 1

[username17]

I recently made a Monk alt and got him his epic at level 1. He has a RBG for haste which makes his fists roughly 9/14.

At what point should I start using weapons other than fists?
My max hit so far (I'm in the low teens) is 18. I was grouped with another monk who was dual weidling SoS with a CoF and I was out dpsing him because he was limited by the damage cap.
At 20 or 30 when I lose the damage cap should I throw a SoS in my offhand? Or keep going unarmed?

I'm a newb when it comes to monks so I'm looking for guidance.
Thanks in advance.