[...trimmed text...]

I have a theory. I have never met you in person, but I feel that I know you well enough to testify to your competence and dedication. Since you haven't changed, that only leaves your customers. The FuPR algorithm tries to categorize the vehicles you inspect by year, make, model, and alleged mileage, and smugly grades your "inspection quality" based on a curve derived from the average follow-up performance of that inspection population. The conclusion drawn is egregiously over-simplified, because it is impossible to use that limited information to include the most important factor of all ... the vehicle owner's actual attitude toward proper maintenance, diagnosis, and repair.

So, my theory is that you got enough "don't give a damn" customers in the last two years to lower your score. It is a guilt-by-association type of fallacy that irks me to no end, but it's hard to get anyone with a good score to listen.

Am I making any sense to you, or anyone else, for that matter?

Michael Barry
Technician
Quick Stop Smog & More
Sacramento, California, USA