I found the GSD3 to be worse than my factory CSC2's for performance. They are quieter than the CSC2 though at the beginning. Little more noise now but still a bit better than CSC2.
Wet weather grip is worse than CSC2, despite GSD3 supposedly being better in the wet (why I got them in the first place!).
Having said that, it is possible that my wheel alignment (toe only apparently in the GTI) may be out which would affect turn in. But I know I can wheelspin the GSD3's like I could when the CSC2's were worn. The GSD3's like to be warm to grip, whereas the CSC2's get worse when too warm.
Personally I would go with the F1 asymmetric or CSC3's. That's what I'm doing when these wear out.
NOTE - mine are not Aus manufactured but made (where else) in CHINA.