Still have yet to do any matches, but my local range has a strict no muzzle over the berm policy, so I rely on the practice I get on public land, or...
Dry fire, dry fire, dry fire. The drill posted above is super helpful!
Left eye dom, but very strangely under unpredictable conditions, I get duplicate front sights when I focus on the front sight.
Not really sure what the issue is, but hopefully it's correctable.