I'm just curious if anyone has ever tried to use the Festool WCR1000 Work Center with another brand of dust extractor. There are several others that will accept systainers on top. Specifically the Mirka / Nilfisk / FLEX models that all seem to be the same. They have an adapter accessory that allows the vacs to hold a Systainer or L-Boxx. I'm curious because i have one of the FLEX extractors, and I have the opportunity to buy a WCR1000 really cheap. So I was hoping someone might have tried this and could tell me if it works. Thanks.