I still use irons on my pistol but my buddies all RMR their race guns. I've been really considering it.
When I try their guns, I feel exactly like what you describe. Still, they insist if I keep working on it, it will fall into place. I'm still not sold.
I have a fear of it falling into place and being the opposite when I want to switch back not being able to find my irons. Plus from all the competitions I have shot the red dots don't always finish faster. Last competition I shot I got 2nd place and 1st 2nd(me) and 3rd place all beat out the open class guys. I will say that is top 3 guys were all on our game that day but it's not uncommon to see limited class guys whoop the open class so I am not into learning new muscle memory.