Nord Stage 3 Compact Key contact strips

Unfortunately nord does not sell the circuit board key contact boards for the NS3C.

Only available is the rubber contact strips separately or a full keybed assembly. My issue is inconsistent volumes on keys. They all work but some play at much more sensitive volumes than others.

Before I drop $500 on a full assembly, would you say inconsistent velocities could be resolved by just replacing the rubber contact strips?

Or is it very common the circuit board part shows wear and causes inconsistent keyboard velocities just as much as the rubber contacts do?

I’ve already tried cleaning them.

Thanks for your help