It's not just a matter of semantics to "inspect" versus "overhaul". However you are using both terms in the same context. One refers to measuring and evaluating for remaining service life, the other requires repairing or replacement of parts that are outside of service limits to restore the component; these are different processes, both physically - and legally in a certified aircraft. I do highly advocate inspecting and doing so on a recurring basis, at least annually and then only overhauling when the inspection condition dictates. Let me put this in context of Continental engines, which I am intimately familiar with; the manual requires an inspection on various times of 50, 100, 500 hours and so on, and then states to overhaul at another time, which varies widely with the engine model.
Having been part of the process myself, I'll just have to agree to disagree with you about how the final times are set - which is really irrelavent at this point. I do agree with you that they are established on a conservative basis.
And again, your discussion of Whirlwind Propellers brings confusion - it should be applied to Whirlwind Aviation, not Whirlwind Propellers - these are two different companies and propellers. The quote I provided previously is from the WWP maintenance section of their provided manual, not a website; it's related to their fixed pitch propeller and it has NO SPECIFIC TBO listed. This thread was about fixed pitch propellers for RV-12's, not constant speed propellers.
In the end, I simply want to encourage folks to perform inspections and not blindly replace components when a timer pops up.
99.9 % of the RV-12's flying use fixed pitch ground adjustable propellers which the manufacture specifies be disassembled and inspected at each condition inspection' so the discussion is still relivent
You didn't happen to exist in another life using the user ID GMCJetPilot by any chance?