I use both styles. It will take a bit of practice getting the dot in the window of the mini-dots quickly, under pressure, as there is no tube to guide your eye. The main thing to remember is to initially get your head down as if shooting irons and then bring your head up until the dot appears in the window. I had a tendency to overlook the sight at first but it comes in beautifully for me now. I took a grouse in the neck with my Bisley 45 with the Optima mini-dot this weekend at 8 yards.