Personally, I have four pins set at 20, 30, 40, and 50 yards. Obviously I think that's the best arrangement -- or I would change it. I find more than four pins confusing. Besides, maybe I'm just old fashioned, but I still think bowhunting is a close range endeavor, and if you can't get within 50 yards you aren't trying very hard. Of course, some people would say I'm nuts because 50 yards is way too far to be shooting at a game animal and that your maximum distance should be 30 yards. Others would say I'm nuts because they can shoot accurately out to 80 or 100 yards, and anyone with fewer than 10 pins set from 10 to 100 yards is a lightweight. To each his own, I suppose. I just know that my personal maximum effective range -- on a calm day, at an animal calmly feeding broadside, in open country with no potential obstructions -- is about 50 yards. (Degrade any of those variables, and my maximum effective range shrinks rapidly.) And having watched a lot of other bowhunters shoot, I would say that's the maximum for most of them, too. So there you have one man's opinion on shooting distance.
Any fiber-optic sight should provide good visibility in most lighting situations. The problem with many is fragility. The fiber optics are not well protected, and they can easily get torn off during a stalk. I like the Archer's Choice Big Buck (423/949-5000) sight with four pins. The fiber optic pins are fairly large, and the fibers are wrapped around the steel sight pins. It's a durable sight, and I've had good luck with it in tough situations.
Let me know how you do on a ND buck,