For those fishermen that enjoy nymphing and ‘wet-fly’ fishing, many companies have developed a number of different sinking lines that allow wet flies to sink more rapidly, thereby assisting the fishing technique.
Despite the popularity of these lines, many fishermen prefer to take the inexpensive route, and simply use split-shots to weight their lines. Although this method is useful when fishing in turbulent waters, such as during steel head and salmon runs, split shots tent to be difficult to cast, and usually ruin eloquent presentation due to their entrance into the water.
The final method involves using needle-like, lead-substitute weights that are inserted into the hollow core of the floating line. Although there are a number of outfitters trying to develop this idea, it is currently not a plausible means due to a few major factors. Primarily, the insertion, and removal of these weights results in small holes in the line, that in turn, weaken the line, creates areas where the line will stretch, and eventually break under pressure.
Secondly, the use of these weights makes typical casting methods nearly impossible, as the weighted areas of the line will be carried farther than the rest of the line, resulting in horrific “birds-nests” and “wind-knots.”
IF the line is successfully cast, than the last problem with this method is quickly exposed. When the line hits the water, the weighted areas of the line will sink, while the unweighted areas will continue to try to float, causing the line to create a wave in the water, resembling a horizontal mend.
Although this method is not practical for general use, these is one style of fishing that it can prove useful for. Over the past few years, fishermen have developed a form of fly fishing call “float fishing.” Due to the large, loop casting, and the fact that the line is constantly taunt in the water, this method of line weighting, if developed properly, may prove very useful in the future.
All in all, the most practical, and effective methods are to simply use weighted flies, and a weighted line. Utilizing these methods, you will successfully drop your flies and be able to get the most out of your nymphing and wet fly fishing.