Like Slufoot and Duckbill, my aperture stays in until it starts getting too dark for it. I also use a Red FireSight up front - that makes for a neat little M1895G package that works well for me (I also take the front sight hood off before shooting, as I hate having it showing in my sight picture).
One day I am going to pick up one of the Twilight apertures to see how that works on it.