Rear Darkside Tire Cupping?

On my 2008 SWING I have nearly 30,000 miles and am on my 3rd set of Pirelli Diablo tires.  My last tire has experienced severe cupping - not so on the others.  I am thinking of going darkside for my next rear tire.  Has anyone had cupping with a MC tire then did you get cupping when you went 'darkside'?  Has anyone had any cupping with a darkside tire?

you wont get cupping with a car tire, just maintain the proper tire pressure, they will go a LONG Long time, I experienced a smoother softer ride, CT has a softer side wall, and feels like a more comfortable ride.

I just went over to the Darkside last weekend. I put a Hercules Raptis on and so far it's been great. I only have 150 miles on it but I like it.

After far to few miles on my Michelin tire, I decided to give it a try, and I have no regrets yet!