Regardless of the glue that you use, incomplete cleaning is the # 1 culprit for insert failure.

Another problem comes from using the 5 minute epoxy. Never use this on arrows. It sets up much more brittle than the 24 hour epoxy. As soon as the point starts taking a little shock, some of the inserts will come loose.

Several very good archers have recommended lowtemp hot melt glue. I haven't tried it yet, but every time there is a thread on gluing points someone brings it up. I think that I will try it on my next set of arrows.