I have been seriously considering doing this red dot setup on my 9mm full size rail build that's currently in process. I can see irons fine, thankfully no real vision issues (yet) but I'm super "dot curious". But I also keep thinking that perhaps the best way to "try it out" is to pick up a second hand GLOCK slide and give that a good solid run for a few months before I commit to having a 1911 slide set up for an RMR.
Following your progress over the next few weeks/months to see how you acclimate to it.