A had 49 way-points loaded in the GPS. One for each state numbered in order. Each way- point was a gas station.
I look at the GPS like I would a speedometer. Just a glance and I know when to turn next.
Having the route in the GPS lets me focus on riding.
I leave a lot of distance in front of me and don't take any chances.
I stop when I'm tried and take breaks. I put in long days but it's because of the breaks.
My dad was an over the road truck driver. Maybe that helps too. :)