Alot of you folks are saying Squirrels are hard to kill if hit poorly. I'm guessing that these are not the Red Squirrels I chase in Alberta. These little fellas are about as tough as a day old kitten. I have killed them with everything from judos, fieldpoints, rubber blunts, broadheads, a wad of duck tape on the end of a cracked carbon arrow, and even once with a clod of dirt. Any of these attached to all types of arrows have killed Squirrels for me, and every hit was lethal whether it hit the hind quarters, chest, or head. No Squirrels have been lost, and the only one requiring a second arrow took a hit it the arse while sitting on a branch. He fell to the ground and with both hind legs busted it was easy to administer the second arrow. All that being said I will confess that they are very difficult targets capable of stunts that put the Matrix movies to shame. Because of this I prefer to use my regular hunting arrows simply because they are faster than flu-flus and harder for the Squirrel to dodge. My favorite head is a rubber blunt since it has alot of surface area and will not snag up in tree branches like a judo will. I try to shoot at Squirrels when they have branches behind them so that if I miss my arrow will usually bounce off these allowing me to recover it.