I bought the nitro extreme 3pin last yr for my new bow. The vertical pins seemed to be natural to me. First thing I noticed right off was how easy the design was to put on my bow, and adjust for sighting in. My sight picture is good, and I really liked using the vertical alignment of pins. I set them at 20-30-and 40 for summer 3D' s.
On the down side the pins are little fragile. I broke one playing around with it soon after I bought it. I epoxy' d the pin, and used it the rest of last summer. My other complaint was they use 2 pins of 1 color. I had 2 yellow' s, and a green. Before hunting season came I contacted Trophy Ridge, and ordered replacement pins. They were very helpful, and I had my new pins within 7days, replacing them is fairly easy. They come with good directions. I changed the broken one to a red, so have all 3 colors now. Just the way I like!!!