We don't offer a "fuel economy" calibration because there is no way that anybody can guarantee better fuel economy.....and then customers would be pissed when they still get the same 14-15 MPG they always had. Mileage on a mechanically sound vehicle depends nearly 100% on how hard the engine has to work (how much power it's making). It takes a fairly specific amount of fuel to make a specific amount of power. Unless a person goes to the lengths necessary required to lower the amount of power it takes to move the vehicle and keep it at a certain speed, fuel requirements aren't going to change.
I guess it WOULD be possible to make an economy tune, but it would be a danger on the street. Cut the power output capability of the engine about 75% and then limit the speed to 40 MPH.......that would do it. Basically the programming equivalent of putting a 2x4 under the accelerator pedal. Nobody would use it because it would suck to drive; not to mention being a HUGE liability issue. For example, for all of the people who like to cut out into traffic.....that would be bad news.
Also, no amount of different calibrations is going to increase performance above what the 100P calibration does (with stock injectors). Being a manual, you have total control of what gear you're in and how hard you want to push the truck. Eleven duplicates of the same calibrations aren't going to make any more power than the 100P.
