Perform test and replace if necessary. Something to be mindful of is to try and prevent sweet basting sauces from collecting in the bowl. They will "glue" the sweeps to the bottom. You can carefully use a scraper to break them free but if your aggressive with it, you will bend the sweeps rendering them useless.
If they are bent to the point they no longer make any contact to the bowl then you don't have to bother with testing.
Sent from my iPhone using
Weber Kettle Club mobile app