My Bama tuner was programmed with 87 performance, 91 economy and 91 performance. Doug told me he did not have an economy tune but I ask him to do what he could. It turns out the 91 economy is just the 91 torque program.
I did quite a bit of performance testing to see the difference of the various programs. With the 91 programs I found the torque program gave me better overall performance. The 91 performance program was good if ran it to red-line but was not practical for everyday use. The 91 performance program actually gave the best gas mileage of the three programs.
I prefer to run the 87 performance program because it gives me better performance than stock as well as improved gas mileage. It also has better response than stock and the drive-ability is better. If I want more power I switch to 91 torque and have not used 91 performance since I ran the tests. Even though 91 performance gives me the best gas mileage, it does not improve enough to overcome the higher cost of the premium fuel.
2002 FX4 Bright Red Supercab 4.0 SOHC, manual 5-spd & Tcase, 33" BFG MTs, K&N air filter, Modified air box inlet, Gibson SS cat. back exhaust, Bama flash, Hidden Hitch round receiver, Rear helper air springs, Electric trailer brake controller, Line-X bed liner, WAAG bar with KC lights and Wildernest shell.