Ah ha, add more to the equation, I have two very different rods, both are fast action rods in that their initial flex runs the top few rings before the rest of the rod starts to bend, however one tip is very stiff (less taper) and other has a very soft tip (fast taper). BUT they are also made from different materials and the lower blank power is probably equal in both SO you can have a fast action rod with either a stiff or soft tip, depending on materials and taper.