i had the kdw2's and right now i have the sumitumo htr zIII. my findings could be based on the sizing of the tires. kdw2's were 225/45 but my zIII are 245/40. the lateral grip of the zIII are above the kdw2's. sidewall on the zIII is softer thus the road noise (very little) is nothing compared to the kdw2's. they are just as good in the wet as the kdw2's (to me summer tires do better in wet vs all-season) i am really satisfied w/ going with the zIII's. ive only put 3K miles on them so far; so the only thing that is uncertain is the tread wear. i just hope i can get+35K out of the sumitumo's like i did w/ the kdw2's.
re01r... too much for my blood (for a street tire).
i may try the comparable (and has been reviewed higher than the re01r) dunlop direzza sport z1 but for a track set of tires.