Learning the press-out you might start slow...but it doesn't stay that way.
As it might be useful, here's some screen shots from one of Todd's video where you can see his presentation:
The front sight will stay elevated as the gun moves towards the target, the rear sight will be rotated up. Note Todd's finger position. Right about there his front sight is touching the paper of the target, but the gun isn't level so his finger isn't on the trigger yet.
I see a lot of incompetent imitation on this. Incompetent because people are finger-on-trigger with the muzzle elevated...which is nonsense. If someone is actually teaching starting to work the trigger BEFORE the sights are actually on target, they're violating key safety rules. I don't care what they say their background is or how many classes they sell. You aren't on trigger until the sights give you permission unless you're shooting from entanglement...at which point your index on the body is your permission slip to be on the trigger.
Now Todd is seeing his front sight on the target and the rear sight is below his front sight similar to a "Stressfire" sight picture as taught by Mas. He's shooting Close Speed, so he's got enough sights now to ensure he's on target even though his front sight is elevated above the rear notch and he's starting to get to the trigger. But you can see how the rear sight is being rotated up to essentially "catch" the front sight.
Now he's got the front sight caught somewhere in the rear notch, finger is fully on trigger and the trigger press has started. You can see the video here:
If you watched Todd shoot in person, you'd notice he presented the gun with an elevated muzzle, all in the effort of finding that front sight and driving it on target. This works with irons because you can see the relationship between the front and rear sights on the gun. It wouldn't work well with a dot because you just don't see a dot until the last possible second.
If you present the gun by driving the rear sight instead of the front sight, you see the dot sooner and you can drive the dot to your intended target.
Of course, if your draw is built right, there's no "driving" to be done, really. The dot will just be there...because the shit on top of the gun is not what drives the gun. How it appears (or doesn't) is a consequence of what is happening below the sights. And that's what Ashton and I focus on getting across in Performance Pistol.