I bought my 2000 Sport with only 2k miles on it. The previous owner installed a Power Commander to rid of "hick ups"...
It got 28 miles to the gall., ... I took the Commander of and synchronized the throttles, whow what a difference, re-installed the Commander and things got even better... about 40 miles now... I feel the manual adjustment worked just fine for me...
I think the message is that if your bike does not run well,or at least has no major..."hick ups" like mine... don't waste money for the Dyno tuning,... safe riding Hardy