My Yuma to SD was a bit more nerve racking. I didn't totally top off, and wish I had. I left Yuma with 255 miles, arrived on Shelter Island with 37 miles left. On the flat part out of Yuma, I went around 70 (vs. the 80 I would have normally done), as I was worried about the hill. Going up the hill I dropped down to 65 and 60....was trying to keep the dash indicator below 40kw (not sure why....but that was what my gut told me). My husband was going nuts saying 'this is embarrassing!!! I go faster than this on xyz road (by our house)." Going down hill, I put it into Neutral when I could and let it get as fast as it wanted (safely) - often over 90mph. Passed many of the folks who had passed me, which added to my husband's embarrassment ;-)
Anyway...coming home seemed much better - as there seems to be more down than up on the way back, and...you get the hill out of the way, so you can easier manage your energy on the flat part. Left with 262, arrived Yuma with 41, and I drove faster the entire way. It was certainly an adventure.....not to mention the charging once you got there. Then need a SC there, for sure!!! And...El Centro would be nice too.