I have the Cosmic and love it. My friend switched to a Copper John from a Cosmic, now he is putting it back on his bow![:-]

I Thank You All for helping me make a decision, I am going to go with the Impact Cosmic Sight. One more question on this sight , the catalog shows two different sizes of Apertures 1 3/4" & 2 1/4" does anyone have pros and cons about the different size Apertures ? Thanks