Dry hopping might help because flavor and aroma can increase perceived betterness. You could also brew a really dry IPA and blend it.
What is the starting and final gravity? How long have you had the hops and why are you sure that they are the problem. It could also be under-attenuation or bad utilization from technique. Do you add them straight to the boil?
The hops are from the 2009 harvest year. And when I opened a foil pack, I just taped it shut, and put back in the freezer. That will change as I state. I used the same hop schedule as I have many times for this beer. Plus, my last time was a bit sweet, but nothing like this.