i have seen the Panoz cars at Road Atlanta, what fine cars they are! I am aware of the Stack system, too.
I put a 20 PSI pressure warning sending unit in my Ernie Elliot NASCAR
oil filter remote mount, it sends to a bright red light i put in a small aluminum bracket with sticky foam tape right on my dash, aimed at my eyes. It lights instantly if my pressure drops below 20 PSI. For $20 bucks, it was pretty cheap insurance. I too believe a momentary loss of
oil pressure may pass unnoticed on the
oil pressure gage.
By the way, i only pre-lube my starts, and leave the sump "on" when i am doing track stuff, for street driving, i leave it off. In my way of thinking, it lessens wear on the cylinder bore in the sump. so instead of constantly pumping/accepting oil as my pressures fluctuate, it holds the highest pressure the engine sends, until i toggle it to release.
It looks really racy under the hood, in front of the engine, seems to intregue folks who admire my engine.