i used the nocturnal nocks this year.and i am sold.. will use them every year now.. i shot a bear with them and to see that red nock slip behind the shoulder of a black object like a bear was just awesome..also shot my buck this year with the same arrow same nock and broadhead..just resharpened it (those g5 t3s are build like tanks) i highly recommend u try the nocturals.. for the price its worth every penny.. when i shot my buck i didnt get a complete passthrough ..came back at night saw my red nock 40 yards from my stand..voila there was my deer no trailing needed