I love shooting competition, and everything it has offered to the community, and as I sit here, an iron sight pistol at my right and a dot gun at my left, I think that there's this alternate universe of what we've missed out on- the sights that could go beyond post-notch but not be dots.
The Marksmanship & Gun Handling thread about the "window" has been fabulous- it's the creative kind of thinking and applications that first made me aware of how much there is to learn here.
I was a 90's kid, back when dots meant a C-More bolted to the frame of a 2011- too big and delicate, but the possibilities of today could be in mind, if not in reality. There were sights that showed up, that even today I would 100% buy and try- if only to see- obsolete now- and a path we never explored.
Seems like every competition either ended up saying "post-notch only" or broke down into some kind of "limited: post-notch, open: dot" divisions, so there was never a home where these kind of sights could have their performance explored under stress-time pressure by talented shooters.
When I'm talking about these sights, I'm thinking about anything not post-notch, and also without batteries. I think the V-notch-Big-Dot was probably the most evident and popular version of this genre, or at least the one with the most general public awareness. There were also the small-ring aperture rears paired up with post fronts. From a distance, it seemed like talented people were unimpressed with either of them. A verdict of a dead end.
I've always been beyond curious about both JP's Double Ring and the DR Middlebrooks sighting systems. I only really read about them twice- once in a online "Gun Test" sort of e-magazine (I cannot for the life of me rediscover it), and another time in some now-defunct paper magazine. I remember the Double Ring being described as very quick but lacking in precision. The DR Middlebrooks had this giant rear ring with a transparent (I forget now if it was glass or plastic) filler- onto which an inner thin black circle was inscribed. The front was a suppressor height post with a fiber optic- the scheme was to center the red dot on the ring. The article author tried out two version of the DRM rear, one with a larger inner black circle- and it was apparently even faster than the small diameter inner black circle.
I ached to try this stuff out, but I just could not find the sights to buy and try. Right I was deciding to jump onto the red dot pistol lifestyle, back during the heyday of Glock Gen4, before the 19X, I really thought I was gonna try to go co-witness, with a DR Middlebrooks big rear and a JP Double Ring front, and shoot by lining all that jazz up with the dot. When I couldn't make it happen, once I had a back-up second RDS pistol, I went so far as to get a airsoft-knock-off RMR, and have a smith break out the glass and chop away everything but the outer ring/shroud, and to install it on the front of one of the slides as a "co-witness" iron, and to assure that a presentation of the pistol gave me the dot in the screen.
Of course, that didn't really last- I figured out consistency into my draw, I figured out that even custom holster makers were visibly off-put by the idea, and there's the big-ring ACSS RDS to put rest any residual dot-on-the-draw anxiety.
I don't really think that these sights, between post-notch and dot, have too much of anything to offer today beyond sheer novelty. I do think, however, that there could have been a 10-20 year "time in the sun" that these sights could have had, and I'm curious to hear if I'm the only one who might have ever had these thoughts.
To disclaim, if I had never thought about any of this, and spent the time-money-effort-thought into just shooting the guns I actually had, I'd be a better shot than I am today. C'est la vie, and all that.