Yes, I understood.Wanted to make sure you understand i was hoping for 63mph AVERAGE not the 75 mph AVERAGE you keep refering to in both posts.
With the estimate above you are hoping to average 75mph with 'on the road time' the rest of the time you are taking a rest. I just don't see any leeway for further slow downs/delays. I know you say "if I stop" but you really should take a minimum of 2 hours for breaks in a 10 hour period with one of them being for an hour. [in my opinion of course].10 hours @75mph=750 miles but if i stop 4 times for 20 minutes each time thats still 640 miles in a 10 hour period (8.5 actual driving)
It's not impossible, but I guess you are hoping for the best outcome, and we are preparing you for what is considered to be the 'average' outcome based on regular members experience who have travelled millions of miles between them.
Despite all that and not getting too carried away with averages, you should make the trip in just under 20 hours in my opinion, so lets split the difference. ;-)