I feel epoxy alows me to align things easier than hot melt does.
With hot melt, if the head is off, I have to heat it up to soften the glue, move the head, cool the glue, and check alignment again. Repeat as necessary.
With epoxy I can glue the head, check alignment, tweak as necessary, check alignment, and repeat as necessary. I don't have to worry about reheating the glue. When all is aligned, set it aside to cure. As a plus, I don't have to worry about touching a hot arrowhead.
Guy