Originally posted by Braveheart Archery: Don't worry about the ferrules, you should still be able to get them to spin true. Just don't mash the head down on the adapter, slowly spin it in using gentle pressure until it's gently seated and then spin it true.I clean both adapters and the insides of the ferrules with Iso alchohol and Q-tips first.For my arrows I prefer low temp hot melt like Super 735, because I tend to move things around over time and it works really well anyway. For customer's heads I use epoxy.