Howdy! After 50 years my wife and I are relocating to the Austin, Texas area from Columbia, Maryland. The road trip in our Model 3 standard range plus begins on Friday and I plan on using the in-car navigation to go from supercharger to supercharger, taking approximately 4 days. The car will be packed with about 100 lbs of added weigh in luggage. My questions are: how much will the added weight affect my mileage. How much buffer in reduced mileage should I allow to affect the projected mileage between superchargers. (you know what i mean) What is the best way to distribute the additional weight. And anything else I need to prepare for, problems in wi-fi coverage, etc. All comments appreciated.