You owe it to the game to make sure you have enough for an initial (hopefully only shot), and any follow up shots that you may need, don't forget any misses. If you are confortable with four then four it is. I take 4 hunting arrows and some times two extra shafts and broadheads not made up but in my back pack, and a couple of the same at base camp. I like to take one blunt as well ussually leaving in base camp unless bird season is open. (base camp is sometimes only my truck or jump off point)