Thanks for all your help on the day. I will mount my utility box on a peace of foam Plastic with fender washers and see how long it lasts on the WR250. I have already modified the boat tail so that it tapers more at the top. I will be going on an other long trip in June and hope to get even better mpg under the same conditions. Maybe even 80mpg+! I like to dream big
, I do think I can get into the 70mpg+ with the next set of minor mods.