Just D
Olive oil is not like sunflower or sesame, it is much darker and thicker, and I have yet to get a pure white pull with it (although it usually is very light and thin and foamy when I spit). It really is the consistency I pay more attention to, it gets thin like water when it is time to spit. Sometimes when I pull and am in a rush it does not thin but I still notice it has done its job by the way I feel afterwards. Also, I have had times when the consitency actually gets thicker and it becomes very big in my mouth - almost too big to hold. Usually when I spit during these times I have noticed it is more of a neon yellow color. Not sure what this means, exactly. I have wondered if this is a hydration issue, when it gets bigger but does not thin (from the saliva). I also used to notice it used to dehydrate me (pulling) much more in the beginning than it does now. Not sure if I am just drinking more water in general, but rarely do I feel as immediately dehydrated by the pulling as I used to. Be sure to drink plenty of water after pulling and during the day. I usually drink tons during the evening, too.
Do you pull only in the morning? Try pulling before dinner some time and see if you notice any difference. I usually get my best pulls then (but I do not eat much during the day so my stomach is quite empty by then.)
D.