I’ve gone back and forth between irons and dots. Aging eyes are the main reason. I have a pair of RX glasses I use when shooting irons, and last summer I put together my first CO pistol based on a P10C and RMR for use as one of my carry guns. I shot it in CO division for about 6 months and really enjoyed it. Last winter I went back to iron sights shooting a Shadow 2 in Prod division. What I noticed was I brought some of the things I learned from CO back to Prod. Namely shooting on the move and target focus. Both are easier when shooting a dot gun, but bc it was becoming second nature to me after shooting CO, I kept doing it and worked it into my dryfire/livefire practice more.
Deciding to shoot on the move vs running fast and posting up for a multi-target array is going to depend on the stage. What I try to do is engage wide open targets if it helps me eat up movement, but still come to a complete stop when I have two or more targets in an array, especially if they are partials. I do try to have the gun up and ready to engage the first target while coming into position, and often times I’ll take the last target of the array while backing out of the position.
Last bit of advice, shoot only as fast as you can see your sights. But do everything else at warp speed.