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To fish deeper, its pretty simple to choose a lure that runs the depth you need to fish
For your line, you can use tree roots, tree bark, long strong grass, seaweed, or even a shoelace
Both sizes also are offered in a shallow model for casting or when less depth is needed
Think of it like T-shirts: If you buy a Large T-shirt from five different stores, they are not all going to be exactly the same, right
Ekologiia 58:331355 Gaskins AJ, Tang Z, Hood RB, Ford J, Schwartz JD, Jones DP (2021) Periconception air pollution, metabolomic biomarkers, and fertility among women undergoing assisted reproduction