Dan I used epoxy..... cleaned them very well the glued. I have never had one come out. The Titanium insert goes up inside the broadhead perfect and leaves a tiny lip that acts like a little cap on the 100 grain inserts I use. I spin tested them and they were perfect... very clean set up. The Abowyers are extremely easy to get a scary sharp edge on and everything I shot in Africa had two holes using my 50@28 Thunderchild drawn to 27"s.
(my arrows were 29" 3555 Gold Tip Expedition Hunters, 100 grain insert, 175 grain Abowyers. I have never had an arrow leave a bow and fly straighter.)
Good luck in Africa!!!