Woohoo!!! I made it !!!! The 30mpg barrier is broken. 
Whew, that was close!
For the record, since last Friday's fillup of 27.7mpg, the improvement is 8.3%.
That's the effect of 5 mods completed this week:- Smooth Wheel Covers (Sunday)
- Rear Wheel Skirts (Sunday)
- Passenger Mirror Foldback (Tuesday)
- Cab Roof Fairing (Wednesday)
- Cab Side Fairings (Thursday)
All together at the same time, they're probably worth about 10% total, or 2% each, which agrees with the findings of others who have done similar mods.
Next up -- Whatever I can get to from this list:
- Better Cab Kamm
- Tonneau Extension
- Front Wheel Well Dams
- Front Wheel Skirts
- Passenger Mirror Delete
Along with these clean-up projects to complete or improve what I already have...
- Wheel Cover Air Valve Access
- A Real Grille Block instead of this stupid cellophane wrap
- Make Wheel Skirts More Easily Removable
- Add Paint to the Belly Screen - Necessary, I don't know
and research projects...
- Sketch My Truck's Ideal Teardrop Curve
- Locate a Coastdown Hill and Cruising Test Strip
We need more emoticons on this board. I want the ones that dance around excitedly. Woohoo!!!