It is and it's key to the set up. One is back to your reel allowing you to use 10 or even 12lb test. The other is to hold the bobber in a ''fixed'' position giving it some freedom of movement and the other is the tab or drop line to the jig allowing you to use flouro in a very light test of 4 to 8lb test as less visibility is paramount in this situation.

Doing it any other way would be.............Uncivilized......