Just play with them, you'll soon get a feel for em :) Seriously though I dont think you can say one set of dial settings works best and usually a combination is needed for the look required. The best way is to play with each dial indiviually see what it does with full tracking on so you can watch the changes, then start using the dials in combinations to get the effect you require, then as your adjusting them you will know which dial does what, and therefore which one to turn :)