I use C3 also with great success. I heat to about 170 degrees but I let it cool to about 150 then pour in FO and stir stir stir. I then let it cool to about 140 and pour. I use FO's from all over and most of them work well especially those that are tested in soy like from KY, FOH and JBN. Peaks oils are great. I love CCocoon and Greenleaf. I don't know where you get your oils from but some just don't work in C-3. I do find the longer the cure time the better the throw. Now, Snowtop's oils will blow you out of the house after 48 hours. Give their oils a try. You definitely won't be disappointed.