anyone here ever try the Warren Tactical/Sevigny Competiton sights??

I have them on my BUG (G26) and my SSP (G34).

I can pick up the front sight quicker with the fiber optic than the other styles.

The only issue I had was learning where in the rear sight to place the red for zero down shots since I focus on it verses the top of the front sight post. Once learned I have been very happy with them. I did break one an hour before a state match but a friend put a new rod in within minutes so it was a non issue.
I cannot use them in low light without a flashlight, my eyes can no longer see the black rear sight well enough to line it up.

I don't change the adjustable sights once sighted in so the only real difference for me between the two was the initial difficulty in sighting in, the adjustable was easier of course.

I can't think of reason not to use them.

I want my load with my bullet weight in my gun to hit exactly where I want. Almost any fixed sight is going to be a compromise at some point unless you get lucky.

On my game guns I like Dawson sights unless I can use a Bomar/SVI copy.

I am not familiar with this particular sight, but I have to say that I decided a long time ago (after some frustrating issues) to never buy an aftermarket sight that was not adjustable. If the issue is the difference in cost, I would pony up the extra.

Agreed that you don't adjust very often, but having that control is a huge benefit IMHO.

I have a different set of experiences. In two instances on Les Baer 1911s, I have installed fixed Warren Tactical sights. I used the 0.175 front sights fiber optic sights and the flat blacks rear sights. The guns shoot point of aim at 25 yards. 230 grain, 1.25 in OAL, and 825 ft/sec are the parameters of interest. The sights are tough as hell and I'd carry them anywhere, or shoot in competition.