Hello. I am curious to see what responses I get. I would like to know what you all think about the HFOV function on the Babylog 8000 plus ventilator. Do you use it, and if so, do you prefer it to the Sensormedics 3100A HFOV? Is it quieter? Now does the Babylog 8000 plus have a piston? I would wonder if its true HFOV because true HFOV has an active exhalation as the piston pulls itself back. Thank you, and GOd Bless.