I really dont like the flat profile of the duro's. I prefer that rounded shape like the terras or the horns. That is my biggest gripe about the powergrips.
The flat profile is what makes this tire perform so well. The high speed handling on these tires, along with the nice mud performance makes this a very good choice for a tire.
We went on a ride this weekend that covered almost 150 miles in one day and they worked flawlessly.
Here is a thread to our ride, Doodles Gang Ride in Michigan's Upper Peninsula.
By the way, the Can-Am Outlander was the only atv in the group that could yank this toy out of the mud
I have the opportunity to ride on a variety of wheels and tires and these are right up there with the best.
But like you say, you don't like the profile, and leaves you many other tires to choose from.
With the amount of companies producing tires these days you should be able to find something that fits your needs.