Dave greatly enjoys employing the Conch strategy, but while Dave is a cat for all seasons, the Conch is not a napping strategy for all season. It can only be used rarely during the summer, due to it's tendency to conserve heat. Therefore, it is replaced with strategies that allow Dave to remain cool throughout the summer.
(*Dave is always a "cool" cat personality-wise, but sometimes he is warm. At other times, he is also "cool" temperate-wise, and is thus cool in more than one manner.")