In a couple of weeks or so I'll be A/B testing Gatorskins against GatorHardshells. Two virtually identical wheelsets (commuting/touring) changed on the same bike. I'm interested to see if I'll be able to feel any difference. Both tires look and feel identical. The Hardshells weigh slightly more due to the added sidewall protection.
I'm expecting them to perform very similarly but will test with open mind. I would be very surprised if the Hardshells feel like tanks... I'll post my subjective findings.