Does anyone know anything about these arrows?

I stumbled across their wedsite when someone mentioned their bows. Appears that they are made from Kevlon, whatever that is. They advertise a straightness of .00145 and a weight variance between 12 packages shafts of +/- one grain. But the way they word it, it sounds like that could mean a difference of 12 grains from the lightest to the heaviest.

Here is the link if I do this right.

http://www.forgebow.com/