Notaro...
...those thin rods are
supposed to work as anchors, while fishing in a strong current...when the sinker hits bottom it tends to roll with the current. With those
rods, as the sinker rolls..the rods bury themselves in the sand, HOPEFULLY keeping your sinker in that area. They - in NO way increase your distance, if anything...they'll decrease it..you won't notice it, but in a grander scale of things...while riding in your car, stick your arms out of the window. That's how those thin rods feel when you cast em'

..so forget the increase in distance. They're sole purpose is to secure the sinker on the bottom. Now like John said, alot of
our area is rocky...and I'm not so sure you'd want to use them round' here, we got enough anchors out there already...
When I first seen them, I thought WOW!!..so I purchased a couple.

... my personal opinion, human eye candy!
One other draw back with these sinkers is that when you do use them correctly, (in a strong current) they will eventually BURY themselves. As sand is being swept over them, they just dig deeper & deeper. How do you accurately "Set the Hook"????
If you have any of those, take a ride to the beach on a windy day...when the wind is blowing sand around. Place it in the sand, you'll see the rods dig in, while the wind covers the sinker with sand. The
wind will work like the current.
aaaaaahhh...Fagggettaboutit!....(my bloo-cents)