I use Judo points, haven't had one get away from me yet    :D  (talking about the Arrow not the bale)

I have been shooting bales for years and with broadheads. Zwickey eskimo with the beveled back pulls right out. Square shoulder heads are hard to get out.I shoot woods, but have seen inserts pulled out trying to pull square heads. One bale a year. Field points are easily removed and causes little damage, however heads will take one down.