A:
This peep actually has a sliding adjuster which allows you to reduce the size of the hole. This really accommodates different light situations. Daylight, make it small; a little dim in early morning or late evening, make it bigger to assist visibility of the pins. As far as seeing all the pins, I've never saw a a setup that you didn't. When adjusting your pins, just line up the circle of the peep with the circle of the pin surround and center the pin you need for the distance you're at. If the hole was so small you could only see certain pins, you would never be able to see your target. Good luck!