Sinking lines are a pain because the application for each is pretty limited...tip to short, sink rate low and your fly wont get near the bottom. If it sinks too fast you will be hung on the bottom all the time. You will have to have several setups to match different water conditions. I have several of those sinking leaders in the 5-10' range..Airflo makes em I think...plus a 15' sink tip, 24' sink tip, Fast Full Sinker, and a 30' super fast sink head & running line setup....I dont use them much, but they come in handy at times.
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