Great video as always Steve!
Just had what should have been a 3 hour job turn in to a 5.5 hour job mostly because of ridiculously dirty tracks and the exact problem you mention in the video…didn’t have the right tools to handle it. Went and got a decent handheld vac before we get back after it again tomorrow with another residential job.
Hoping that vac combined with the track brushes we already have will make those go quicker tomorrow if they happen to be filthy like today’s.