I would not trust the Accu Measure. Everyone holds fat in different parts of their body, and to make a calculation based on one pinch seems assonine to me. Some women hold more fat in their hips and thighs, while others hold it in their mid section. I would find a place who has the regular kind, and do it that way.
I really don't see how it could give you an accurate BF %. And for what you're doing, you absolutely need an accurate calculation. Do they measure the same spot on both men and women?