Standard rubber OEM tires will leave the side walls compacted, making it harder for roots to penetrate the soil and establish a stable stand.
The Double V Zipper will destroy the side walls of the seed V, leaving crumbly mellow soil over the seeds, enhancing seed to soil contact.
You can see the difference between rows closed with OEM rubber wheels and rows closed with the Double V Zipper behind this Tye 2015 drill