I have no experience with that mill, but I have a Monster Mill with 3 rollers. I set my gap with a feeler gauge based on feedback from here (.032 if I remember right, it's been over a year since I checked it). It also has two hand screws to maintain the gap and I hand tightened them. I check them to ensure they're in place every time I use it and I've never had an issue. I get around 80% efficiency.