I'm impressed with 44 mpg in 30 degree weather and its still in the 'break-in' mode! Seems fantastic!
#2, are you slowing down or speeding up? I only ask because you describe it as 'engine is trying hard to get up to speed'.
How do you find the seats - since you are doing 70 miles a day?

let me sign this: currently an accord driver, hoping to be a hybrid driver soon!