I leave my BUIS up and cowitness 100% of the time. It is a very nice setup. The Eotech ring nestles just perfectly in between the sides of the front site. The Eotech's center dot "sits" right on top of the front site post. It works great.
"Arms like laws discourage and keep the invader and plunderer in awe and preserve order in the world as well as property."
- Thomas Paine, Writings of Thomas Paine, M. Conway, ed., 1894.