Here's the dilly-yo on my 11th bullwhip. I didn't include the details of it yet...

This bullwhip has a 12 plait Kangaroo overlay and measures 5 feet 9ish inches from the butt of the handle to end of the fall. The handle is 8 inches, the thong 3 feet 7 inches. It has a removable fall which is about 19 inches, so that give a total lenght at approx 5 feet 9 inches