I had bought a Holosun 507C green dot to try to get used to the optics. My eye sight isn't bad know and I'm still much faster with the iron sights but I too have astigmatism and figure the day is coming when they get bad enough they give me a problem. I really like the Holosun on my M&P 40 with the 5 inch barrel it's a Pro Series that come with co witnessing sites and an optic cut out with plates. I don't think I'll be adding an optic to any of my carry pistols at this time though.

 

I also use a holographic reflex sight, but still have the distortion I experience with red dot sights. It's due to astigmatism and a growing cataract. With the projected holograph reticle I find aiming easier than with the single dot, which I perceive as a small distorted star.

In either case, I still find it faster to pickup and aim with iron sights on a pistol. I do prefer optical sights on an AR rifle platform.

 

I agree the iron sights have always been faster for me as well, but as things have become what they are in the country, I have spent a lot of time training for 75’ and beyond head shorts in emergency situations in public places like restaurants. In my area, I am much less likely to be mugged in our grocery store parking lot than the possibility of having to defend my family in a public place from some crazed nut job.

I always thought the red dot on pistols was a gimmick until I aged and the iron sight covered up the head target by the front sight at 75’. But the green dot 32 moa circle has eliminated that aging problem a great deal.

 

Love my Holosun green dots.

 

My green dot was fairly easy to zero in with just a few shots, i started at 10 yards, stand up 2 handed, and moved the dials until it shot center. (I never shot from a rest, for me it does not seem to be a real life practical thing to do)
This was a 3" target