I also have a 2012, 700 miles, and i have a commute very similar to yours. Mine is 8 miles one way. I think you are fine based on my experience. My bike got noticably quieter right around 600 miles. I was just riding along at highway speed, and thought "that sure is a fine sounding engine. it really sounds great now!" I took it to the dealer for the oil change and valve adjust, but it didn't sound any different after that. Please see the topic "don't baby your tdub" or something like that. I really didn't follow the manual on break in after the first 200 miles or so.