I was an early adopter of Paul Frumkin's enzyme cleaning formula way back in the early 2000s? I used my VPI 16.5 RCM with his product with great results. Moving forward to a couple years ago I was gifted a US tank and spinner. My friend had purchased a big buck automatic unit. My experience over the last couple years has been that US cleaning is far superior to the previous method. I have no problem cleaning my prized records 2 at a time. I have been running them through the US tank and then the VPI 16.5. I have also run them through a second or 3rd time if needed. Until a new technology comes along, this has tuned out to be new dimension in quiet vinyl for me.