Seedcorn, if you havent tried Beauregard sweet potatoes, I recommend it. They are as short-seasoned as any of them, and are fairly moist and waxy. That means they can be baked in the skin without drying out too much. Ive tried other varieties, especially the white ones, and they dont always bake really well. They make killer sweet potato casseroles, but Ill stick to the Beauregards in the future. They are good in casseroles too. Beauregards are the ones you usually buy at the grocery store if you want to try one ahead of time.
Thats another new one I tried this year, the Murasaki sweet potato. Its a purple skinned white flesh one developed by LSU. It grew and produced OK, but the flesh is not all that waxy. If you bake it in the skin, it is really dry. I wont be growing it again.