The idea behind the graduated densities of the SONAR Uniform Sink is a brilliant one: instead of a single density that can sink at an uneven rate due to the fly, the front of the Uniform Sink lines sinks faster than the rear, all but guaranteeing a straight-line connection to the fly. In stillwater situations, this is a must-have, non-negotiable, fish-catching attribute.
WF5S 40.5' 90' 140
WF6S 40.5' 90' 160
WF7S 40.5' 90' 185
*Grain weight for the first 30'