This does the 1 and 36. Recovery times at the 1 terminal, 10 W/W Fulton are short, 9-10 minutes. I'm typically down 6 by the time I'm stopped at the terminal. Breaks at the Beacon/Myrtle terminal are about 30 minutes. If you look at the route as a Myrtle-Fulton-Myrtle non stop, then you're not far off the mark.
36 isn't a bad route, except for 12/Jackson. This is the real international district, not the one the tourists get to see.
With all the breaks, the actual driving time on this run is only about 5-1/2 hours. Someone fairly senior must have taken the day off for me to get this.