You are playing Russian Roulette with AN -10 fittings in the
oil supply/delivery system. If you drive the car like a Sunday go-to-meeting car, it doesn't matter. If you drive it aggressively, even if that is infrequently, you are playing an oiling system version of Russian Roulette — when you do not have to.
The price of AN -12 hardware over AN -10 hardware is non-existant compared to a wounded engine ...
And, yes, like Russian Roulette, you may pull the trigger more than once before you find a loaded chamber. Those free trigger pulls are a form of fool's gold, to mix metaphors.
Almost forgot, AN -12 is period correct for the period correct crowd.