As for a red dot I have no choice. I just can't see the irons without special prescription shooting glasses. I also have a laser on the gun.
Maybe cheating was a poor choice of words. But...the advice of the experts all seem to echo yours. So if I'm not doing that (or think I'm not) then my reasoning says I'm doing it wrong. And if I'm "doing it wrong" with a firearm that's slated to be a defensive forearm it causes me to worry that the approach will fail when I need it most. In other words, if I'm not doing what those that know what they're doing say to do then I'm on my own and I'm probably on a fool's errand.
Where I can see this failing is at night when I wouldn't be able to see the rear of the gun very well.
Know what? I think I'm going to dry fire practice for about the next 30 minutes.