Safety is not the issue here as both myself and R32 have said!.When the tire starts to wear, it ruins the ride quality and tire noise in the cabin.This is nothing to do with whether you want more grip when tearing around a corner, or drive like youve been posessed!!!.
I dont track my car, i just like to have a quiet, smooth run in my car without having Dunlops ruin it on smooth road surfaces drowning out your driving enjoyment.
As tyres are not covered under VW wear policy, its recommended to change these for what gets recommended by ALOT of the mk5/6 community.
I can tell you 1st hand, had both versions of the Sportmax tyre,on 2 of my 3 carnations of GTi's and for the 2nd time, am having to change them due to Cabin Rumble.
Good recomendation from boardlord , spec something else from the factory order. Problem solved and save you parting with £400 for replacements later on.