If you’ve spent any time with us in recent years at our lodges in Alaska or British Columbia, you’re probably well aware that we’re a big fan of tube flies for a whole bunch of reasons.
When fishing tubes, we generally rig them using two different methods – ‘Stinger’ style to hang a trailer hook at the back of the fly, or by using a ‘junction’ material to nest the hook directly at the back of the tube. Regardless of which method you prefer, the knot used to attach the hook is almost always hidden either within the tube or junction material.
Therefore, when we rig our tubes, we like to leave to leave the tag end of our leader-hook knot nice and long. That way, not only does the extra leader material help to better seat the knot in the tubing, but it also helps prevent any slippage of a faulty knot.
Sure, a well tied knot should never slip anyhow.. But, considering you (or the fish) will never see the knot anyhow, why not leave it long and be on the safe side.