In case you didn't know, V Development Group had a Steiner MPS drop that sold out immediately, but they are taking pre-orders on another drop.
After hitting the range and running a 200 drill, I immediately saw that my MPS zero had shifted slightly to the left. I corrected it and marked it with a marking pen, which I suggest everyone does. I confirmed the zero by shooting 5x rounds at 25y. Still a little low but works for me. I would recommend checking your zero on all guns every time you get a chance at the range. I am still very happy with the MPS and have not changed any batteries since starting to carry it.