I'm in a similar boat vision-wise in that as I age, my sight is deteriorating, and I am making the same transition decisions as you are. I am moving away from iron sights (FO) for competition over to a RDS.
I bought a SIG P320 X-5 about 3-4 months ago, and added a SIG Romeo 1 RDS with the 6 MOA dot. Everyone that I talk to says the 6 MOA version is light years ahead of the 3 MOA model, and not just because of the dot size. It is a newer design, and is much more reliable, etc. I also bought the SIG protective shroud, FWIW. The X-5 is already milled for the Romeo 1, so it made sense to mount it directly to the slide rather than use an adapter. That much force from repeated slams of the slide reciprocation need a secure mounting system to maintain the zero.
Another thing that I have recently done, which is a miracle in of itself, is to buy a pair of the Hunters HD Gold Progressive shooting glasses. I have tried several other ($$$$$) brands, including ESS glasses with the prescription insert that I spent about $375 on. The Hunters HD Gold glasses are the new "official" eyewear of USPSA and SCSA, and while pricey, they are truly the greatest thing that has ever happened to my vision needs with shooting glasses. The tint makes everything just POP, and they change darkness depending on the lighting situation like a transition lens.
I can see why there is so much buzz around these glasses nowadays, there is truly nothing else that I have seen that works anywhere near as well. I got a set of progressive prescription lenses using their "Caliber" frames, and I am just completely gobsmacked. They are not cheap! I paid $400 for the entire package, but after all the money I have spent on other glasses, this is finally a solution that works, and works well. Back to the "buy once, cry once" philosophy.
I know this seems like a lot of money, and it is. But then again, I just bought 3,000 bullets for $300+, then 8 lbs of Titegroup powder and 5,000 primers for another $350, and those are consumables! $400 for something that I will use every time I shoot for many years to come seems like a bargain when you put it that way!
https://huntershdgold.com/
I have been practicing a lot with the red dot and the new glasses, and things are finally starting to come around. I am getting much better drawing to the sight by dry firing a lot, and I have been trying to work on my target transitions during dry fire as well.
Accuracy-wise, I am doing pretty well, but I wouldn't say I am any "better" than I was with my iron sights. I am learning to shoot with both eyes open with the RDS, which is a great way to shoot. I worked on it for a while with iron sights last year as well, but it is much easier with the RDS than with the iron sights.
Overall, I am much happier shooting with the RDS than I was with the iron sights, it is really a great way to shoot when you have vision issues.
If you want to meet sometime, you are welcome to try out my gun and sight and see how it works for you.
I bought a SIG P320 X-5 about 3-4 months ago, and added a SIG Romeo 1 RDS with the 6 MOA dot. Everyone that I talk to says the 6 MOA version is light years ahead of the 3 MOA model, and not just because of the dot size. It is a newer design, and is much more reliable, etc. I also bought the SIG protective shroud, FWIW. The X-5 is already milled for the Romeo 1, so it made sense to mount it directly to the slide rather than use an adapter. That much force from repeated slams of the slide reciprocation need a secure mounting system to maintain the zero.
Another thing that I have recently done, which is a miracle in of itself, is to buy a pair of the Hunters HD Gold Progressive shooting glasses. I have tried several other ($$$$$) brands, including ESS glasses with the prescription insert that I spent about $375 on. The Hunters HD Gold glasses are the new "official" eyewear of USPSA and SCSA, and while pricey, they are truly the greatest thing that has ever happened to my vision needs with shooting glasses. The tint makes everything just POP, and they change darkness depending on the lighting situation like a transition lens.
I can see why there is so much buzz around these glasses nowadays, there is truly nothing else that I have seen that works anywhere near as well. I got a set of progressive prescription lenses using their "Caliber" frames, and I am just completely gobsmacked. They are not cheap! I paid $400 for the entire package, but after all the money I have spent on other glasses, this is finally a solution that works, and works well. Back to the "buy once, cry once" philosophy.
I know this seems like a lot of money, and it is. But then again, I just bought 3,000 bullets for $300+, then 8 lbs of Titegroup powder and 5,000 primers for another $350, and those are consumables! $400 for something that I will use every time I shoot for many years to come seems like a bargain when you put it that way!
https://huntershdgold.com/
I have been practicing a lot with the red dot and the new glasses, and things are finally starting to come around. I am getting much better drawing to the sight by dry firing a lot, and I have been trying to work on my target transitions during dry fire as well.
Accuracy-wise, I am doing pretty well, but I wouldn't say I am any "better" than I was with my iron sights. I am learning to shoot with both eyes open with the RDS, which is a great way to shoot. I worked on it for a while with iron sights last year as well, but it is much easier with the RDS than with the iron sights.
Overall, I am much happier shooting with the RDS than I was with the iron sights, it is really a great way to shoot when you have vision issues.
If you want to meet sometime, you are welcome to try out my gun and sight and see how it works for you.