Good question. Actually, I think it is consistently reading 5 mph low throughout the range, although I will have to check that with the GPS. I've got to get the dang thing back on the road again first and will then start fiddling with the speedo.
But I tried, didn't I? ... At least I did that. RP McMurphy The past belongs to the future...but only the present can preserve it. Besides the noble art of getting things done, there is a nobler art of leaving things undone.