Appreciate the feedback, but I read the following about those Simitomos and am not impressed. The UTOG is only a 300 and the dry and wet traction only a single A. Compare that with the Nexen 3000 with a UTOG of 340 and a AA- A rating. Plus from what I've read, Nexen is a subsidiary of Michelin and if you look at their tread patterns, they are very similar. Almost every vendor- Tire Rack, Tire buyer, etc. rate the Nexen very highly.
Some reviews of the Sumitomos.
http://mustangforums.com/forum/s197-handling-section/577960-sumitomo-htrziii-review-2.html
Plus there is this
http://www.moddedmustangs.com/forums/2005-2010/62863-sumitomo-htr-z-iii.html
Again, not trying to start a ****ing match, but I guess that's why Baskin Robbins makes 31 flavors. I've had the Nexens on the car for a year and not a complaint. Probably have another 5-10K miles left on them before new ones are needed.