Here is the way we attract mackerel to your boat try it and let me know how it works for you roll loosely strips of aluminum wrap ans cut into thin strips then cop into diamond shapes. Fill a coffee can with the confetti sized pieces take a hand full and throw over the side they will sparkle in the water and if there are any mackerel they will immediately come to your boat once you start catching them you can keep them there when they move off go to another spot and try again it works for us in Scotland so let me know how you do cheers
How much does it weigh and how much does it cost also can it just be driven from a hydraulic pump run off of your engine or does it have to have that gas engine noisy crap in the background