I mix SFIC bases too. I have found that I can achieve a much more natural look using 80% low sweat clear + 20% opaque (goatsmilk, low sweat white, shea butter, etc). It gives the combined bases a more translucent look and when I introduce color I can then get away from the totally pastel look a solid white/offwhite base would give. Check out http://www.emporiumnaturals.com/default2.asp?cat=Herb+Blends+for+Color for some great herb blends to add natural color. Blessings, Lisa