Well right off the top of my head one of the cons would be the inability to rotate the tires. I have an '09 Z06 at it sucks that I can't rotate the tires, heck I can't even swap them from one side to the other because they are directional. I'd have to remove the tire from the rim and remount it in the opposite rotating direction.
2016 Ecoboost Mustang
2009 C6ZO6 - Katech Stage 2 #115
2005 Mustang V6 (Sold)
2003 Terminator (Sold)
2002 Mustang GT (Sold)