I like the extreme's, don't have one. My brother does and I have asked him repeatedly how the smaller site window effects the view. He won't answer. I'll have to wait until the season to see it for myself.

I have had lights and don't like them. They cause the pins to be to bright and I can't see the target well enough. I can see the pins on my copper john (not a huge amount of fiber) for as long as I can see what's in front of me. Around here we have overcast day's 90% of the time during the fall.

Hope that's some help. Give a review on it if you do. I'd be interested.