Kayin-Wow! 7.4 lbs. is great!!
That sounds very similar to what I am doing. My window is 3:30-8:30 (or so!) I also have about 100 cals. worth of 1/2 & 1/2 in my morning coffee. I only do this on work days also. It works slowly but it works for me!!
Keep posting and let us know how you are doing.