I don't have a central dust collection system. However, I don't spend much time in my shop either. Right now I simply move my wet vac around to where I need it. This works but is a hassle relocating it all the time. Why couldn't I just buy 3 or 4 wet vacs and keep them with certain machines? I would love to have a central system and they're not awufully expensive, but the problem I have is the ducting. That just seems like too much work, too much thinking, and too much money when I just use my shop 6 - 8 hours a month or so. Any thoughts or input?