These beasts' senses are tuned to the max.
One sense that is important for pikes/muskies is the lateral line, a system of tactile sense organs located in the head and along both sides of the body, used to detect movement and vibration in the surrounding water.
They use their lateral line in conjunction with their sight to give them a more accurate picture of what’s going on – how far away their prey is, how fast it's moving, and its size.
The lateral line is often forgotten by the fly angler. We tie pretty flies, but most of them have a very small footprint in the water. I'm not saying these don’t work, but why not maximize your chances of attracting more fish or perhaps bigger fish?
So how can you make a loud fly?