I filled up this afternoon after running some errands and the results are ....
78.47 mpg ( 2.35 gal for 184.4 miles) So close to 80 mpg. The taller gearing is working great, still good acceleration and I think some room to go taller. I have GreenJoe's 33 tooth rear sprocket but I think that might be too much, plus I would have to shorten my chain or get a new one. I may see if about testing Alan's 39T. I need to talk to Craig about getting the 3rd Vetter tail. Things are looking up.