The sink rate of our Lead lines is affected by many aspects mainly the boat speed, lure weight, amount of current, etc. Our standard rule of thumb is 5-6 feet per color sink rate, at a trolling speed between 1 – 1.5 mph.
When trolling at 1.5 – 2.5 mph using a one ounce lure in no current; the typical depth will be 6 – 6 ½ feet per color, or 1.25 feet per 2 yards of line. This depth will be affected either up or down by .25 feet for every ¼ ounce of lure weight. At approximately 25 feet of depth, the sink rates may be affected slightly due to thermal cline levels found in most waters. Unfortunately, we do not have detailed information on the variances at depths greater than 25 feet.
The depth does not vary greatly between pound tests due to the line drag created by the larger pound test lines. One would believe that the larger pound tests would sink deeper, but their larger diameters cause more drag in the water which pushes the line back during the troll. The biggest impact on sink rates was dependent upon lure weight and troll speed. Theoretically, MicroLead would have a slightly faster sink rate due to the smaller diameter -> less drag in the water. MicroLead sinks very similar to copper line.
Depending upon the fishing conditions a monofilament leader of 5-6 feet is recommended. Normally the Lead Core line is tied to a quality barrel swivel and the monofilament attached to the other end of the swivel. If tying directly to a monofilament leader, we recommend using a uni-knot to attach the leader. It is helpful to pinch the lead out of the section of line to be tied so that the knot will tighten more evenly. Typically, removal of twelve inches of Lead is sufficient.