Wow, its been a while since I’ve thrown flukes. I always used to fish them weightless in open water. For 5"ers I used a 6’4 ML KVD baitcaster and 10# mono. For 4"ers I used a 6’6 M spinning rod and 8lb mono or 10# braid.
I guess a few times I did throw them around some pads at one spot, I used the 5” green pump flukes to imitate a bluegill feeding in the pads. I used a 7’ MH baitcaster and 17# mono and fished them topwater so they jumped out of the water on each pop.