I've got a Nitro Extreme and am pretty happy with it. I have the .29 fibers and am going to change them out to the .19's. I would also recommend the optional light. Mine has the holes for the glow sticks and they are o.k. but kind of a hassle, cost too much for me, and don't last very long. The light makes the pins really glow bright. I bought the light at Sportsmans Warehouse for about $16 and it came with the bracket and bolt to screw to the sight.