I'm not so sure that's true. I've played on some pretty crappy bar boxes with paper-thin felt as slick as Ralf Souquet's head. I doubt a vacuum ever touched those tables, just good hard wear and tear from playing over the years.
Good to know about the vacuum, though. I was considering taking my HD Fein shop vac to my cloth. You may have just saved the world from a thousand new curse words being invented.
I wonder about using a powerful vacuum myself. The Simonis website says not to - that "less is more" since you are only trying to pick up chalk dust and not gravel. But in another thread RKC said he uses a very powerful vacuum and it's not a problem so long as the slate seams were sealed with the right material.
Still, when I bought my vacuum I went with the Simonis advice and got a 2.5HP portable shop vac with a passive brush attachment - not too powerful but plenty to get the job done.
Just don't use powered rotating bristles.
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