Spinner blades, different styles?

There are many different styles of blades, what do the Dakota style blades do different, they look like a split willow leaf

The Dakota blades take less speed to make em spin, so you can got a bit slower with them. They say you can see more of the beads/float with them too, because of the split, even when the blade is turning. I was probably going a bit fast with em the other day at 1.9mph, but they were catching fish. I haven’t used them with regular pill floats, but I’m gonna try. I already like using them with peg floats better, like the snells they come tied up as from Cabela’s. I’m ordering some this week, I can tell you that much!