I am in the process of trying to figure out dust collection for my small shop. a friend of mine has 4 grizzly 1hp dust collectors that he had planned to use for large downdraft sanding tables but ended up going with a large cyclone for his shop instead. I can get them for a steal, but if they don't serve my purpose, it's not worth it. they are rated for around 550 cfm. Would these work efficiently directly connected to my 10" cabinet saw, 17" bandsaw, router table, and most importantly to a 6" jointer and a 13" planer? These have only been used a few times and I can get all 4 for $300. Biggest problem I see with them so far is they only have 5 micron bags on them.