Which particular roads would you say are overclassified here?

I think shorter arterial roads that provide connections between major highways or high-traffic areas like commercial zones can be just as vital as major thoroughfares that stretch across the metro in their own regards. I also think it makes sense for some roads with lower traffic counts to be classified higher than some roads with higher traffic counts depending on the scenario. For example, Route 42 in this area is an objectively more important route than Snider Road through Mason is, but it sees less traffic than it. US 42 spans the northeastern Cincinnati area connecting multiple suburbs/towns in the area to each other while Snider mainly serves to connect other tertiary and secondary roads and the residential and industrial areas along it. I think Kemper, Snider, and Pfeiffer could be bumped up to secondary and Tylersville between I 75 and US 42 bumped up to primary. Looking back on my changes though, Butler-Warren Road is the only road which may have been overclassified in my opinion.