Barry, when I was doing some stuff for the company, a couple of years ago I did a four part series on ‘The Knowledge’ dealing with this very issue. I also adopted a cyclonic system with the appropriate Ax fittings and fixtures to build a complete dx system. If you punch ‘dust extraction’ into the search box, the series is highlighted and part 4 shows my eventual system; part 1 shown in the linkie here: https://knowledge.axminster.co.uk/dust-extraction-basics-part-1/
In my view, this is one of the most complex areas in woodworking to get your head round and I profess no special expertise apart from that gathered by extensive reading and pestering a few knowledgable Ax staff.
