Re730's are junk. They were noisy, gripped like chalk, and wore out prematurely. Mine cupped as well. I was so mad that I just burned them off even quicker so I could justify getting new ones. Talk about unpredictable? These things broke loose and scared me, not controlled at all.
I purchased S03's after. I put 13k HARD miles on them in the summer hear of South Florida before I sold the car and they still had tread left! Grip was incredible, almost TOO grippy! Unbeleivable in the wet, also quiet and comfortable(relatively speaking). These tires actually got BETTER with age. Highly recommended
