I supplement with my coal bed with a few natural briqs at times.
If I see that the coal bed is lacking, I will just toss on 4-5 Rancher briqs.
They burn slow and it can help maintain my fire nicely
I see no harm in that. I might do it twice during a long cook, really depends.
Ok Joe Offset, New Braunfels El Dorado, Weber OTS 22.5 & 18.5, (2) Master Forge Charcoal, Auber ATC, charcoal retort Weber drum rotisserie