Great advice all! thanks!
Sadly my color head has a scale from 0-100, I heard most standerd color filtrations are in the range from 0-130/170? Am I wrong? Hows should I interpret 30/30/30 (standard) on my head? (0-100)?
How much is to be expected from using 50/50/50 on my cls head (with another 50/50/50 freedom range for contrast control)?