Artistic value and aesthetics aside, world record holder and avid billfisherman Jeff McFadden showed me a way to build and rig a no-nonsense billfish tube fly that is extremely effective. Like most of these flies, it's simply a collection of feathers tied around a tube. As a result, you can easily attach it to a pretied big-game leader while you're out on the water, so it isn't necessary to carry flies that are already rigged on a leader stretcher. This is a real plus in this day and age of travel restrictions. Since McFadden carries them unfinished and unrigged, he can create a fly that works in a variety of conditions depending on his current need. If he wants a topwater pattern, he adds a popper head. If he'd rather throw a subsurface fly, he wraps some lead around the tube and quickly glues it in place. He can even put two flies together to create a longer one for bigger fish. Once they're tied, McFadden stores his tube flies in a plastic bag and keeps his pretied leaders loop-to-looped on a spare spool, ready for final rigging.