Perhaps there's been a misunderstanding.. Rspec.. are you referring to the Goodyear Eagle GS-D, which is one of the original equipment tires that comes on the G35 from Infiniti, perhaps? Instead of the Goodyear Eagle F1 GS-D3, which is a completely different tire and does belong in the same category as the S-03....

 

Yes I do have them(GS-D3) on my Nismo 19" LM-GT4.
The main problem is that the side wall flex problem.
They handle ok on good dry pavement but on the road like bridges(uneven pavement) the tire flex, flex, flex.
I'll definitly go for SO-3 next time.

BlackNismoV35

 

Rspec, do you have them inflated correctly? Every tire reviewer I have read says they are the absolute best in dry and rain. Rated above the SO3. They have out in Europe long before they came over here and the Eurpoean road racers swear by them.

 

Whenever the 17" factory tires wear out on me, I am going w/ the Eagle F1's on 19" gunmetal Volk SF-Winnings - I have heard soooo many good things about these tires, esp. about the treadwear...(my #1 factor when looking for tires) - go to tirerack.com and click on "Survey Results" above the tires when you do a tire search for a specific size...the numbers tell the story...