congrats on ur new purchase crowie! i bought my i-mini before christmas and i love it! The initial bit of getting the right grind is painful. I basically wound it down to when the blades were touching (dont operate it at this point, obviously), wound the other way until they looked a reasonable distance apart, and adjusted it form there by looking at the shots it produced. Then i did about 5 shots of coffee and re-adjusting to get it right. i guess there is no really right way to do it, just a lot of trial and error.
once you get it to a right grind tho, its magic. Only needs 1/2 to 1 turn of the knob between most of your different beans, and at most 2-3 turns for when the humidity of the day changes a whole lot (doesnt happen too often).
its a great grinder man..i have to say tho ur machine does turn me a little green with envy :P