I think one thing that is confusing people here is that there is no magic bullet settings to this(or any) skimmer...
nor would you want there to be...
you WANT a skimmer that is fully adjustable, so you can set it according to your bioload/nutrient levels/feeding habits.
No one other than you is going to know this information, so YOU are the ones who must learn to be observant, start a log, and figure out what settings are the best for your system. Mike can only provide a place to start and a methodology for making adjustments based upon
the skimmer design, he knows nothing of your reef system.
All you need to do is get a small valve for the air line and another small valve for the maxi-jet, prolly less that $5 total.