Not too hard if you follow the instructions and are mildly mechanically inclined.
I know a lot of people have commented on difficulty to assemble, but when I bought them, they were already assembled, so I only took them apart to clean them after proving their effectiveness.
Advantage over a aftershock head would be a larger entry hole, disadvantage would be less penetration. From a high stand and a steep angle (close shot), I didn't get pass through shooting at 65#, 100 grain head. It did kill the deer, dropped within 50 yards, I heard and saw it fall from my stand.
I know a lot of people have commented on difficulty to assemble, but when I bought them, they were already assembled, so I only took them apart to clean them after proving their effectiveness.
Advantage over a aftershock head would be a larger entry hole, disadvantage would be less penetration. From a high stand and a steep angle (close shot), I didn't get pass through shooting at 65#, 100 grain head. It did kill the deer, dropped within 50 yards, I heard and saw it fall from my stand.
