Thank you for watching. It's a personal thought, but I will answer your question. It assumes fishing with a float. As you know, in normal fishing, the float is floating on the water surface, When the float enters the water or the water ripples that come out of the float Determine the reaction from the fish. However, our target TANAGO is less than 5 cm The force that pulls the float into the water is weak, and it is a fish that you should be wary of because of its resistance. In the case of TANAGO fishing, unlike normal fishing, the weight is adjusted to reduce the buoyancy of the float as much as possible and stay in water. In this case, the float is not for knowing the reaction from TANAGO, but for staying the fishing system in water. Of course, there are reactions that you can catch with a float, It's not enough to know all the reactions from TANAGO. The small reaction from TANAGO, especially the reaction of pulling vertically, is hard to see, and of course the propeller also has resistance when pulling for fish, I am using a propeller to gain visibility. Because TANAGO fishing uses a short rod, This is because you will be looking at the float from an angle close to directly above. In Japan, TANAGO fishing has a history of nearly 200 years, and many ideas came out from anglers from that time in order to catch more fishing. This propeller system is also a modern application of the system that was created nearly 100 years ago. TANAGO fishing, which is one of the old fishing cultures in Japan, is Recently popular as an angler's inquisitive fishing. I'm very worried that you will be satisfied with the answer, I will be happy if you can solve it even a little. I look forward to working with you.