Sorry if it's a very stupid question, but why don't they add some bumps in the border of the disk so it does not roll on the floor? Does that destroy the aerodynamic properties?
Discs with thick, round rims (generally "putters") already stop pretty short when they land. It's the distance drivers with sharp edges that can roll a long way, but those are very aerodynamically designed and bumps would probably mess that up.
Plus, there's regulations about the size and weight of discs, so it might not be allowed on PDGA tour anyway.
> It was originally approved in 2007, but had its approval rescinded the next year because it was argued that the disc did not have "radial symetry.