That's exactly right. Sure, Novaks look nice. But they actually hamstring the ability to keep the gun running. In a fight, your hands are out in front of you... as such - they are more likely to be injured than using one arm to shield Sister Mary Nunface or holding a baby or whatever fantasy you have in your head about a heroic defense. The reality is you are probably going to be hurt and can only use one hand to get your gun back in a fight. And as luck would have it - it's probably going to be your weak hand. Because in a past life you were cruel to puppies. So that means you are going to be hurting, stressed, jacked up and jazzed up and everything is going to be all the more difficult.
A Novak Sight makes one hand operation a real b____. It just does. The best thing for your defensive (Fighting) gun, is a rear sight that let's you easily and quickly cycle that action to get it back in the game. From teaching many courses, and taking many courses, it's just a fact that Novak sighted guns take longer - a lot longer - than sights with a useable rear sight that allows you to rack the action against something unyeilding... like a belt, holster lip, steering wheel, goblin's head, curb, bumper... Novaks suck for fighting guns.