Looking seriously at the TS55 plunge saw and dust extractor package. I am a contractor that does alot of in and out small repair jobs. I am looking for a lightweight model, but one that will perform as a dust collector for the saw(and possibly another festool tool in the future), possibly a Rotex or something similar. Looking at the models of dust extractors available, the "mini" seems to fit the bill for me. I am assuming that the only difference btween the "mini" and the "midi" is the canister size? Is it worth the extra cost to get the 22 or 33? I dont want a gigantic shop vac type vacuum, just something to hook up to the tools and maybe a little cleanup afterwards. Plus I want something small to easily fit in my van(running out of room in there for more stuff!) ;D