It's hard to tell this far away which week will be the best. This year starting toward the end of February the lower lake starting producing the best that I have seen it in the last 6 years. During the week of Spring Break (March 15-19) my wife and I cleaned 337 crappie. About the time the lower lake stopped producing the upper lake turned on. Every year isn't the same. A lot of it depends on how the corps keeps the water level during the winter months. Wish I could give you a more definitive answer but that's about it.