I recentlyhad a concern withthe set screw of my used Rage 2 Blade not backing out after passing through a deer. Well I just got off the phone with Rage Customer Service (Field Logic) and told them the issue and they simple told me to send in the head and they would replace it FREE! Also, I asked if they changed the design of that set screw and they have and it is now a roll pin that will come out after the head has been used. Hope this helps a few guys out. I will update after I send it off and when I get it back just to make sure everything goes as said over the phone.