HV oil pump vs Stock oil pan

Rat Bastid said

10 at idle will cause the cam to ride on the bearings. See it all the time. By the time the oil gets to the cam bearings with 10 on the gauge (assuming the gauge is correct) you’ll have zero or close to it at the cam bearings too. I’ve never be able to wrap my mind around running low oil pressure like that at idle. The cam sees the same over the nose pressure at idle as it does at rpm. Drop a decent roller cam in there with 180 on the seat and 500 over the nose and that low oil pressure at idle will eat a set of cam bearings right quick.

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Here you are talking application. Yes when you run a fairly hot cam, you should be running more oil pressure due to the ensueing loads on other components. For a street engine with more like 300 to 350# over the nose the 10# is livable, though a bit low. Remember the old rule about 10# per 1,000 RPM? It works.
The old 71 Series Detroit Diesels could idle with the oil pressure light flickering and not be harmed. Cam at the top of the block. Generally the oil pump was fine and new bearings would remedy that. But guys would run them for years like that.