I guess that I will chime in here. This question only pertains to using an artificial worm under a float (as in float fishing). Just out of curiosity, do any of you have any preference in regards to using a worm that has been threaded onto your leader, or one that has been threaded onto a jig hook? If so why?
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"During every one of those thousands or more casts, the angler must cling to a silent prayer that is forever a winter’s hope, no matter what the actual fly pattern.”

Bill McMillan