Wanting to go to a single pin adjustable sight. I'm not exactly sure how these work but was considering the Trophy Ridge V-Drive or the HHA. Do I understand correctly that you simply turn the nut on the drive or move a lever to switch the one pin to different yardages? Do these work alright? I want one that is lightweight, quick to adjust, and precise. I would appreciate any opinions on which of the two are the better sight or any other brands as well that I did not mention. Thanks in advance.