today we cleaned about 8000 sq ft in 4 hours including set up and breakdown. I used the Zipper Super spinner connected to the vortex. My tech used the 360i Bh connected to a bluewave. I cleaned about 70% of the total area. The super spinner is faster but my tech thinks the 360iBh cleaned better-- I sorta agree. I was impressed with how well the super spinner worked on uneven subfloor areas. The Super Spinner will be my go to tool on commercial jobs. looking forward to using it again at a day care in 4 days. Erik deserves a trophy for his inventions.