I would recommend setting the top pin for 20 yards, then 30 for the second, and 40 yards for the 3rd (bottom). You'll find this the most common setting.
You don't need a 10 yard pin for hunting as the point of impact with the 20 yard pin is only about an inch high at 10 yards.
You don't need pins at 5 yard increments. Doing so only clutters the sight picture, blocking out more of the intended target/animal. All you need to do in such cases, such as a shot at 25 yards, is gap between the 20 and 30 yard pins. At 35 yards just gap between the 30 and 40 yard pins.
Depending on where you live and hunt you might find that almost all your shots tend to be less than 30 yards. If this is the case then I've found that any bow shooting an arrow at about 260 fps and above can be sighted in for 25 yards and effectively used from 0 to 30 yards with just a mid-body hold on deer sized game. The high point of the arrows arc will be about 1 3/4" high at 18 yards and the drop at 30 yards should be just about 3". Using this criteria means that with a mid-body hold on most deer, if the shot is 30 yards you'll take out the top of the heart.---------No guessing yardage , holding high or low. To accomplish this you can use a single pin or an adjustable sight set for 25 yards.