I think they used multiple waypoints instead of the current type’s single waypoint.
The ability to add slack to FX Strings would greatly improve how they looked, but it would obviously cause some conflicts with the current system.
Was there any particular reason why this wasn’t implemented?
Is it possible to revisit this idea in the future?
If not, a good compromise would be to add a variant to string lights that gives each segment slack (which I think is how the String FX were first shown off).