I have a Novo cream separator-have you tried to contact the seller-he is really helpful. While I have not mastered cream separation, and I don't use my machine very often, I have spent some time trying to figure it all out. I have Alpines so I do not get as much cream as those with Nubians. My best was 1 pint to to gallons. :/ Christy suggested a few things that were helpful. After running your milk through the separator then run some of the "skim" milk through. When you are done separating, run hot soapy water through as a pre-wash. Yes, there's a lot to it...all the bowls, pans and washing! Why I don't use mine often and have yet to master cream separation! And the regulation screw-yep in is thicker cream, out is thinner. From what I have been told, you just have to play with it. definitely keep you milk at about 90 degrees, you will find that helps a lot.