I started nymphing a couple of years ago, but really didn't understand what I was doing until a buddy of mine took me out and showed me what tight-line nymphing was. Before, I would use thingamabobbers and, later, the New Zealand Strike Indicator as my main indicators. These work well in certain conditions, especially when tight-line nymphing is impossible due to current and distance. However, one of the biggest game changers for me over the past year has been using Loon Biostrike as my main form of indicator when nymphing.
I love this stuff not for what it does, but for what it doesn't do. It doesn't really float, which means that I have more control over the depth of my nymphs. You can make it float by forming it into a ball, but I usually stretch it out over my line so it sinks with my flies. It doesn't fall off easily, which means I can use the same small piece for entire days. It also doesn't spook the fish. In fact, when I have fish start striking it, I use it as a sign to start switching up to dry fly or terrestrial. Finally, it doesn't kink my leader. I hate kinked leaders.
What it does do is help me catch fish since I can see my line and what's happening to my line a lot easier.
For $7.50, go out and buy yourself a container and give it a try. It's one thing I always have with me and use every time I go out.
Sketches & scatterings. Rooted in Pennsylvania along the Susquehanna River.