Thanks now. I definitely hear ya. It really is an experiment thing. But what would I watch for to know if it's building up or not?? Any symptoms that I can watch for or just the weighing down?? Thanks I know one for example that when I oil all my length and then lowpoo, now all the oil comes off, (I used almond oil and soybean) and even the next day, I could still see the shine and definition from the oil, making me think my lowpoos aren't that good at getting oil out and so I could perhaps get buildup.