Either way will work. The simple fact of the matter is that the airflow has to be controlled. I don't find it necessary to sweep ash in my kettle during a cook, even on longer cooks. Those air vent holes on the botom are large enough that ash falls through and doesn't clog them up. I'd prefer to NOT sweep ash during a cook because it stirs it up and it ends up on my food.
Kamado Joe Big Joe ° Kamado Joe Classic ° Old Country BBQ Pits Brazos Offset
UDS ° Traeger Lil' Texas Elite