30 lb Power Pro , Fill up the spools equally. Then once you get out on the water do the boat n troll length test. Go out to 20 ft of for 20 jets or 30ft for 30 jets (as an example), let out line slowly until you just start to hit bottom. Then read the counter number. Does it match the book. For me anyway, 30 jets at 100 ft out reach about 24ft. Boat speed will change this of course. Trolling seems like a Math problem most days.