Well been running on the US server with the load balance option set since about 7am PST this morning and it seems to be leveling out I started the morning running around 1.78KH/s and over the last couple of hours its been stable at 2.1KH/s still down from what I normally run at around 2.4 - 2.5KH/s but my unexchanged and my balance amounts are going up like they were when I was only mining on the EU server.
My rejects seem to be down as well.
Currently running non modified cgminer 3.1