wheel them when there are many teams that qualify, based on the criteria listed in the first two posts, only as a convenient way to decide how to play the card. note that most weeks will not have enough teams that qualify, so a wheel is not possible.
if your local has different numbers, it may be a more profitable situation, for example if he is slow to move numbers. use miami yesterday as an example, as they moved to -1 from +2.5 when i posted. so if you were able to tease miami to +7.5 [at least], when the current line is -1 you would have a very good bet.