Not sure what your air temps are but here in Austin and last week in Jackson, MS I run TakeOff 32's during the day and 27's when the sun goes down.
27s during the heat of day squeal like a stuck pig and you slide everywhere. The 32's are dialed, once the sun goes down the 27's really come in.
Typically use tire sauce once during practice then not again the rest of the evening.
Ned