When the Goodland, Kansas Supercharger opens soon, it will be the closest SC to a Texas SC -- 742 miles from Corsicana. Only 77 miles closer than Gallup, NM, but it's something!
Ah, an improvement, but just barely... 742 miles is still a two day drive in my MS using RV parks as the "best" available charging Option (~400 miles per day). I have squeezed 495 miles in a single day out "in the wild", and that makes for a very long day.
It took 27 hours to drive 650 miles in the previous trip. This trip it was 23 because one stop had a HPWC at a very friendly Tesla owners' house in Bristow, OK (on Plugshare if you're going that way).
Well, it should keep getting better: Corsicana to Goodland - 735 miles Corasicana to Hays, KS - 595 miles Corsicana to Salina, KS - 500 miles Hopefully, Hays will start soon, and maybe Salina after that. 500 miles to Salina is almost manageable... Someday there will be a causeway off of the Texas Island!
If you use the HPWC in Bristow, OK (some nice Tesla owners there) it's do-able with only one RV Park charge stop in Winfield. Math is (Starting at my house): 260 - 230 = 30 3-4 hour range charge at Bristow, 260 - 140 = 120 2.5 hour RV park charge at Winfield 170 - 130 = 40 30 minutes Supercharge at Salina 230 - 180 = 50 B&B with 14-50 In Roca (just south of Lincoln). Spend the night here. Total distance 670 miles. 7 hours of charging time.