Hey, squirrel hunting with my bow is my passion in the fall! And I have tried them all except the nutters or wingnut set-ups that Dennis uses. I shoot mostly ramin wood arrows for them. If I was hunting grays, which in my woods we don't have, I would use a heavy blunt or hex heads.
Fox squirrels...touger than cats. I have seen them fall from over, 50 ft. out of tall sycamores, on to rock, along the creeks, get up and take off!
My favorite heads are old field points slotted with banding steel cut to the size of like bleeder blades. I will glue in with super glue.Like Curt says and simular to what Jason uses. Jerry Pierce loved them squirrels and made up his own heads also! Dean Torges wrote an article about Jerry and Tom Mussato's passion and equip. in a TBM years ago.
Also, the head that frassetor shows, Game nabber has worked good for me. They will rip the foxes up, but won't stick in a tree.
Early season, I like to be in or along a small creek. They will come done for a drink! Good shootin, can't wait for Aug.15th! Steve.