New wheel/tire package - 6ULs and Hankook R-S3s

I recently mounted my new tires onto my new used wheels.  Off went the R1Rs that were on there and on went the R-S3s.  The tires are Hankook R-S3 tires in 225/45/15. The new tire/wheel package isn't any heavier than my old one, despite being 30mm wider and the wheel being an inch wider.  This is mainly due to the new wheel being so light, and the Azenis being an old, heavier tire for its size. 

Total diameter for the old Azenis/Konig package is 58.6cm.  Diameter for the new RS3/6UL package is 58.35cm. Thats a 0.4% gearing advantage. The tread is almost gone on the Azenis though. My math shows that with tread gone, the tires should be at about 579.7cm, so the felt (if any) gearing advantage from the last time I drove the car should be gone.  Also, mass of the wheel goes up 1.76%.  That doesn't mean that toque loss is 1.76%, since the entire rotating mass is not going up 1.7%. Either way, the advantage of added grip should be pretty immense. Based on what I read on forums, the tires should not rub at my ride height.  

Azenis RT-615, Toyo R1R, Hankook R-S3 comparison

• 949 Racing 6UL mk1 15x8" et36 -12.8lbs
• Konig Rewind 15x7" et40 - 14.5lbs
• Hankook R-S3 225/45/15 - 21.8lbs
• Toyo R1R 225/45/15, 50% tread left - 20lbs
• Falken Azenis RT-615 205/50/15 - 19.5lbs

RT-615 - 205/50/15, Diameter 58.6cm
R1R - 225/45/15 but they seem to run a bit wider than R-S3. Diameter 58.35cm
R-S3 - 225/45/15 Diameter 58.35cm

New wheel/tire package weight - 34.6lbs

Old wheel/tire package weight - 34lbs

Part weight database has been updated. I can't wait to see what these tires will do.  I hope I get very close to my target time.  The R1Rs are sold, going on a GRM 2011 challenge car.