Is Cathe's butt pencil test "if you can hold a pencil under your butt cheeks, that's fat"? If so, it's not necessarily true. I have a 'tuckless' but, which means that there is a fat pocket right at the glute/ham tie-in, so I couldn't hold a pencil there, but it's because of the fat that's there. (I've always envied people with 'tuck' butts. A 60-year-old colleage of mine has one! And so does our secretary.)