[martin417]

As an engineer, I have an issue with the "lateral" and "inline" numbers. On an ideal surface, and the interaction between the wheels and "regolith" this year com as close to ideal as you can get, friction depends ONLY on friction coefficient, and normal force. There is no directionality component. I looked at the wheels, and went to Home Depot and looked at the surface. I can see no reason, theoretical or otherwise, for a difference. As AndrewN's testing shows, in-line and lateral should be identical.