Carp anglers use a marker float primarily to accurately understand the features of the lakebed before fishing. By casting the marker float out and dragging it back slowly, anglers can feel the changes in bottom texture—such as gravel, silt, or weed—through their rod, allowing them to identify the most suitable spots to present their bait. The marker float setup typically includes a braided mainline and a lead, which transmit vibrations clearly and help detect depth variations, drop-offs, or hard