Tying a Double Trace On Your Mainline In this video Jason demonstrates how to tie a double trace onto your mainline. Prev 1 of 1 Next Learn how to tie a Double Trace On Your Mainline If you are jigging for big fish or fishing around rocky structure we recommend having a double trace to minimise the risk of line break. Jason demonstrates how to tie a double trace onto your mainline so you don't lose the big ones! Prev 1 of 1 Next Knots