I watched Jerry Miculek's review of the M&P C.O.R.E. The low mounted red dots are his compensation for old eyes. I like the idea they fit in a Blackhawk Serpa holster and add very little to the profile of the gun. The interchangeable bases seem like a well though out idea, much better than drill and tap the frame to get a mount point. This all from a guy that mounted his first Ultradot 30 on a Super Redhawk 480 Ruger this year. Investing in another platform takes some thought. I don't like the magazine disconnect feature or the reports of a questionable trigger system. I also recently (last few months) have fully gotten into learning the striker fired trigger idea. I could care less that a Glock requires you to pull the trigger / "strike out" as J.M. says. Checking you gun before clean, maintenance, or just dry fire practice is rudimentary. I do have night sights on my carry guns at a minimum. Old eye focus with a reduced depth of field, so focus on front sight is the primary solution, along with good trigger control. Good luck with the solution and keep on practicing. At least the M&P C.O.R.E. comes in 40 S&W if I finally go totally to the dark side and abandon iron sights.