Hypermiling update: Consistent results without hardcore hypermiling

I have continued to monitor my gas mileage and have been consistently seeing around 30mpg without using some of the more extreme hypermiling measures. This has still left me a bit puzzled. I have two possible conclusions—one or both of which must be correct based on my results:

1. I suck at the hypermiling techniques.
2. My car sucks at hypermiling techniques.

Feel free to chime in if you have any insights.