At %25 his truck would never hit good timing numbers at cruise.
looking at your screen shots you will need to set it to %40 to get timing up where it needs to be at cruise. With Stock injectors that does not worry me as you aren't flowing much fuel.
good mpg will come from timing being in the 20*-23* area between 55-75 mph.
Actually you might attempt 25%...
You need to find the closest boundary to cruise to power mode. I was finding my truck was still in cruise mode and climbing grades. Now kicking the cruise limit down to 25% now it kick out just about the time start climbing hills. I resumes cruise timing in timely fashion. This is based on 55-65 MPH speeds.
so your light throttle limit is set to 30%, so you wont be getting high timing unless engine load is below that %30 mark. In both of those shots it was above that.
You should be wanting ~23* of timing at 75.
change your light throttlr timing limit to %40 and see what happens. I am betting mpg will jump signicantly.
I am guessing you have stock injectors?