Having just bought a /5 I am now faced with getting a dust extractor with variable suction. The cheapest quality one appears to be the Fein dustex 25 which now has variable suction. It's just over half of the price of a Midi which I think makes it quite good value. However, looking at the cheapy end I see that a number of people are happy with shop vacs such as the Aldi. This makes me wonder whether anyone has tried to convert or adapt their Aldi so that they have variable suction. If so, how did you do it?

ken