The continuing Saga waiting for my new Ram 3500

I do know this much. If I baby my truck it don't get as good fuel mileage as it does if I just go on. I'm not saying put the hammer down go on but just go on and get up to speed. If I baby it it seems to hold gears too long the quicker I can get it to high gear with the TC locked the better it does. Mine has 3.73 gears and it gets better mileage at 65-70 than 55 empty. 62-63 is a good highway speed for me and 70-72 on the interstate.