Disc Carriers Part of Field?

[Michael Corsetto]

I was checking out some match videos and I came across the Finals Match 2 at Oklahoma. http://www.youtube.com/watch?v=NhrQNmzLuV4

At 1:45, you can see very clearly the Feeders have some sort of "disc magazine" that holds a nice stack of discs for the feeders to have quick access to. It looks like both feeder stations have at least one of these assemblies. I've been to two events so far (CVR and SAC) and haven't seen these assemblies at either event. Is this standard at other events? It seems like a great way to keep the discs organized and probably speeds up field reset.

Also seems helpful to those FCS teams out there

-Mike