I fished alot for flatheads in the Lynchburg/Big Island/Monacan Park area and had best results from June-Sept. .....Although many have disagreed with me on this site before but I NEVER had any luck fishing for flatheads during daylight hours! Sure you will catch one every now and then in daylight....I caught a 14lb flathead on the upper james on a nightcrawler before in daylight, but when we were consistantly catching big fish it was always at night. Usually from dark - 2am (they may have been biting longer, thats usually what time we stopped fishing)