All mine are clipped down,fixed snoods between two beads and silicone stops which allows the rig snood length to be adjusted but firm enough to stay in place with casting and fishing.
If the sea has a tidal flow (estuary) Ill use a flowing trace that is held in place for casting with a cascade swivel placed into a fixed power gum loop which it releases from on impact. Similar to the up and over pulley that is now in vogue.
Moonfleet Angling used to show these rigs but I think they are now no more.