I find it a bit strange that you say you know the difference, but have complained that the dust box only works “sort of” if you used the right equipment on the dust box it would work in the way it is intended too and the box would empty as mine does, I have the Neumatic two motor 2400watt (3.2hp) unit and even that will not empty the dust box, but is good for its intended purpose, which is dust collection the fact that Axminster has put a 100mm inlet on the canister of one of their units does not mean it will work, there is just not the volume of air movement to effectively work on the large amount of chips that are produced by a Router Table.
This may help you to truly understand the difference and why you have to have both HVLP and LVHP in the workshop: http://www.ukworkshop.co.uk/forums/a-guide-to-dust-extraction-by-member-siggy-7-t102025.html
