J. Clarke wrote:
The reason I put one in in the first place was MDF. End up with a
main collector full of MDF dust, the little one under the filters
hardly sees anything.

I get so much MDF dust in the drum, I created a shop made bag holder to
install plastic bags. Dumping the drum was gross.

The bag holder is simply a garbage can that fits inside the drum, with
the bottom cut out. I install the bag, put in the can, and work... At
dump time, I pull out the can, close the bag, and repeat.