[s-cars] LAC Goodyear GSD3

[JAM]

I'm wondering if any other S heads are running these and what you think of them.  I'm running 225-50-16W tires on the urS4 Fuchs on the S6 avant and they're pretty squirmy, as the sidewalls are really weak.  I'm finding that these tires are not confidence inspiring at all.  They were on sale last winter and I thought I got a helluva deal but I'm finding this may not be the case.  I wonder if these tires are only this squirmy certain sizes since most reviews on Tire Rack are positive but some of the gripes were sidewall stiffness, or lack thereof.  
Is anyone else experiencing similar problems?  

Jason M.
'95.5 S6a
'93 S4
'96 Passat TDI variant
'96 Passat TDI