I recently saw an add on a new nock that bohning was making to take place of fletchings. Kind of like the FOB. Except they are like vains on your nock instead of a circular device like the FOB. You can also shoot it with a whisker bisquit. I am having trouble finding them anywhere online. I would appreciate any info ya'll may have! I think they called it a hunter vain. But not sure.

Thanks