Thanks, and welcome to T'ville! Your Covington sweet potatoes are gorgeous- I've never grown that variety. I'm sure that with a longer, hotter season those tubers would have fattened up for me, but I put them in as early as it warms up enough and kept them in until fall. Some of them were extremely long but many were quite gnarled and curvy, too. I won't be trying them again- maybe I'm just too far north for them to perform at their best. My brother lives in Covington, GA but doesn't garden. Hope those Evangelines do well for you.
Please post your pics!