No aircraft have been taken from Mesa. In fact, rumor around the office is that there are discussions about adding more E175s. Of course that's a rumor someone in the office probably started so who really knows. I tend to wait until I see the aircraft at the hangar before believing anything.
I can't recall the last time we didn't hit our goals with United. Once IAD was up and running well on the Ground Ops side, it's been on automatic over there on that side of SOC.
I can't say I'm aware of any issues with fuel consumption. As far as I hear, United is pretty pleased with our performance.