So all this time, I've been using SoapCalc's default of 31g FO/kg oils. That's .5 oz ppo (edited), half of what most of you use. This may explain why I feel like my CP soaps aren't scented enough. So I decided to look into the safe usage rates of all my FOs. This is what I discovered: 1. It was pretty easy to do because so far I've just purchased from one supplier (NDA.ca). 2. I am WAY less of a FOHO than I thought, with only 73 unique fragrances (all 100ml) and only a few doubles (some intentional, some not so much). 3. A number of my fragrances are no longer being sold by NDA, but I was able to find the Quality & Regulatory Information sheets elsewhere by googling the names; two I couldn't find any trace of. 4. One of the Q&R sheets has nothing listed for safe usage rate. Strange. 5. 5 of the 73 had low usage rates (below 5%). More on that later. 6. 13 of the 73 had usage rates higher than 5%. 7. All the rest (52) had usage rates of *exactly* 5%. Here are my questions: 1. Is 5% just a good CYA for safe usage rates? Is there really some science behind this or just laziness/"close enough"ness? 2. A few of the FOs are just a bit above 5% but two (Fresh Linen and Sandalwood Supreme) are 100%. Sensuous Amber is 30%; Green Mint is 78%. One of the 3 lavender FOs (not one I own, but consulted by mistake) says "unlimited"...so, like, MORE than 100%?? What is going on here??? 3. Bitter Almond's rate is 4.5% (close enough to 5%), but Rose Garden is 2.5% and Christmas Eve and Allspice are both 1%. Pear Fantasy (which I've come to detest for its cidery/spice tones) is .5%! Apparently it also discolours AND accelerates, so really, what's the point?? Bottom line: I want to be safe, but I also want to be smelly! What's a girl to do??