Just relaying personal experience here:
My target/game gun is a G34. it came with the Glock adjustable rear and a Hi-viz front.....absolutely horrible.
All I knew was 3-dot or solid black, and thru a buddy I was introduced to 10-8 sights. The front was FO, rear a U notch. They came with red and green FO that you installed yourself. I went red.
What I found was that a red FO created a flare effect, where the green did not.
I shot with them for about 2 months, but never really was impressed with the accuracy I was achieving, compared to the traditional 3-dot.
I purchased a set of Proctor's Y sights, and installed them with a green FO. Accuracy in my case has been night and day. The sight picture is excellent, and there's really not alot of room in the sight picture for air, if you know what I mean.
since using the Proctors, my scores have gone up, and times down. Is it just the sights, probably not, but they are working better FOR ME than the 10-8 setup.
Background:
Shooting all my life, primarily any competition was always Bullseye, with a Smith K38....full black bullseye sights.
In my 50's
Failing eyes.
New to IDPA/run and gun games.