Often wondered about that.
If you rig the hoochy like a commercial :- Siwash hook with a swivel (inside the hoochy)....then, because you have no swivel up near the flasher, the turning of the flasher will impart a rotation on the leader which carries right down to the hoochy. Because you have swivel inside the hoochy, some of the leader rotation will be absorbed by that swivel. If it doesn't then the hook is turning too which is kicking up the legs/fronds of your hoochy into a continual twist, which may attract fish or it may not.
If you rig the hoochy sport-like (one hook up, one down with no swivel inside the hoochy) and you have no swivel at the other end either, then the flasher rotates and the hoochy follows the rotation as well because of the leader.
This twist could get transferred through the hoochy which is rigged one up, one down with no swivel........and , again, start kicking up hoochy leg/fronds due to the spiral action of the leader.
This "twisting up and kicking up" of the hoochy legs as it rotates with no swivel at either end on a "one up ,one down" rigged hoochy may be fish enticer...or it may not.
if you want a narrower profile on your hoochy I would go with a swivel up by the flasher at least.
Try 'em both ways and see what works......Cheers....
