Since I am only visiting here from Aspen, Colorado let me offer some advice. Feel free to critique all of the trails in the area. I bet if you go to any shop in the area and say the same thing. I am sure that they will close the shop, get their bikes and take you to all the honey singletrack because some one from the west coast says their trails suck.
Pine needles make for fine singletrack.
So do active clubs. I am actualy surprised that you recieved such a plesant reply from the friendly people of the Triangle are in the previous message. If there is such a word. Part of the fun of riding here is the technical challenges, for examples numerous log crossings, manmade obstacles, and tight, twisty trails. This means that a 5 mile trail can have a different challenge each time around.