Heavy thud with some sting to follow. Oil tanned helps to keep your flogger "weather" resistant.
Medium - light thud with Cow Hide. Deer tanned to make leather very soft. Can be Pleasantly Stingy.
Bull Hide produces a nice medium to heavy thud while still remaining soft to the touch.
Venus Bolivian Rose Wood Handle with Oil Tanned Cow Hide
Dick Head Walnut Handle with Dear Tanned Cow Hide
Venus Burl Wood Handle with Bull Hide Leather