Rockenchair it is mostly only preference and what you like. a single dot, pin, or crosshair for some is ideal because it is less busy or crowded in the field of view. For deer or animals of this size or larger, you can get away with only one pin or aiming point. The hitting point high or low would still be inside the killing zone at normal distances but for something like turkeys, you would need to either adjust your aim point (hold high or low) or use different ranging sites.

I use a regular rifle scope with tapered crosshairs. Where these tapper down to a finer line (2 points) will give me 3 total aiming points (just works out with my bow 20, crosshair-30 & 40). My dad has a different scope and I find it very busy or cluttered (he likes it) and I think he has 6 different points for aiming. These are all fixed points of aim, so you has to remember where each points are for distance (not always on the 20's, 30's ect....... sometimes like 15, 24, 33). I think that I will be (if I can ever come up with the money) getting an Excalibur scope because of the variable setting for the points of aim. Different weight of arrows will give you different arrow speeds and points of impact (adjust speed ring and your on target).

I love the feature of having the extra aim points because my bow is very accurate and I want to be able to place the arrow exactly where it should be.

Hope this has helped you and not confused you more