Unless you have an oil warning light mounted where you can see it mid-corner, you won’t know if you’re having that problem. I put in an aftermarket gauge and warning light and mounted it on the A-pillar and the light would just stay on during long left-handers. The Accusump helped, but at some tracks where you have two long left handers in succession, even the big 3qt one I have just doesn’t cut it. Also, it pressurizes to nominal oil pressure, but when it has to dump oil into your engine, the sustained flow only gives you about 20psi.
I’l also note that I tracked my car about 6 weekends a year for two years without knowing about the oil starvation problem and my engine didn’t blow up, but I also know others who didn’t have as much luck.
If you have the engine out, the crank scraper is a no-brainer mod.