agreed with everyone else, pull with stonger solvent, swim uses xylene (he doesnt really like limonene for pulling, great cleaner though!) and he also likes to heat the whole container up to about 55C before he pulls, it seems to help separate the layers and also will be more likely of getting EVERYTHING out. he did this twice one time after doing 4 naptha pulls and found out that the xylene cleaned up everything the first round!
what you should be left with is a sticky gooey yellow/orangeish goop that will have some crystal like appearances in it, swim rextals that about 4 times just to be safe with heptane