If you want to use it just for Bowhunter class 3d I would get a single pin. HHA Kingpin or a Tommy Hogg or Hogg Father are great sights....CBE tek single pins is great too.
Any of these could also be used for hunting.
If you go to a shoot where the Bowhunter Challenge is not available, these sights would out you into the "Open" class....
Alternately you could get a CBE tek hybrid, with 4 pins...this sight is good for both Bowhunter Challenge and MBR class out to 50yards. Also a great hunting sight...
Lots of great options.
LC
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