Hi I found this (really old) post whilst searching for help on applying the fur preset, and I too had problems with cleaning up the fur around the lips and ears. You're probably way advanced now anyway but I thought I'd let you know how I fixed this problem just in case. I found that by going to windows>outliner and selecting the 'Gorilla_FurFeedback' node under the 'FurFeedback' node and upping the U and V samples to 500 I had a lot more control over what I was removing. (This did slow my machine down a bit so I guess it has to be used in moderation.)