RalphK22, I've owned production and Performance Center 5906s with Novak sights. Within my experience, no two people are likely to shoot any of them, or any other iron sighted handgun or rifle, to the same POA/POI. No two humans have the exact same sight picture, grip, trigger press, etc. Now two people may happen to shoot whatever gun to the same POA/POI, but don't count on it. Nothing has to be wrong with shooter or gun.

Forgot to add, there is no rule. Each gun is an entity onto itself. This or that gun might perform best with this or that ammo. Only testing will show what works best in that particular pistol, for a particular shooter....

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NRA Life, COTEP 640