Split Scimitar (Boeing)

Is anyone/Pilot familiar with the primary advantage of Boeing’s Split Scimitar ?

*“We are always looking for opportunities to reduce fuel expense by improving the efficiency of our fleet. The Next-Generation 737 Split Scimitar Winglet will provide a natural hedge against rising fuel prices while simultaneously reducing carbon emissions,” says Ron Baur, vice president of fleet for United Airlines. According to United, the new winglet design demonstrates significant aircraft drag reduction over the basic blended winglet configuration United uses on its current fleet. United expects the new split scimitar winglet to result in approximately a 2 per cent fuel saving for any 737NG fitted with it." *

The above quote is from the 737 Tech website.