Follow up:

I've had the Super Dust Deputy (SDD) in front of my Laguna dust collector and just dumped a barrel of chips. The chip barrel on the Laguna has a small amount of fines in it and the bag under the filter has essentially nothing in it. I'm very satisfied with the Super Dust Deputy - except for the space the SDD and the barrel takes. It would be much nicer is the Laguna separated as well as the SDD so I didn't have to put a front end on it.

I would certainly not recommend a Laguna dust collector to anyone.

Mike