RE: Gluing inserts in carbon arrows?
I agree. All of my hunting broadheads are used when originally installing the inserts. The inserts can then be lined up with the fletching for a while till the epoxy sets. (If you are picky about having everything exact don't forget to record which broadhead goes with which arrow if you remove them for any reason.
There is another option for lining up broadheads with fletching as well. If the insert is already in and dried, little rubber gaskets can be purchased at local pro shops and added to the broadhead threads. This allows for more flexibility to tighten the broadhead the desired amount.