What I use is this:

Wealden Tool Company Limited Bottom Trim

I am using a Kress 1050 and normally surfacing at 2.8 to 3.2m/min feed rate. With my new dust shoe all I get is a fine dust laying on the surface and the shop vac picks that up no problem. I have a 12 to 20 mm MDF board on top (I don't cringe every time I might gouge the surface as I did with the HDPE and the MDF is cheaper). Right now setting up a Vac table and system using stuff I have learned from watching others.

I get a really nice surface and normally only take about 0.1mm to max of 0.25mm and that give me a nice flat surface again. Just IF surfacing a piece of work make darn sure that the hold downs are not in the way of the bit, they are a touch expensive.

-Michael