One of my most reliable and favorite models to shoot (okay, I say that about all the girls) has some contribution shots on Wu's Feetlinks that you HAVE to check out if you haven't gotten a chance to see them yet! Madison and her lovely long soles get nice and oily in a huge contribution set.
Much like you, I adore wrinkles on soles. But in all honesty, what I love about Madison's the most is that fact that she has the longest, smoothest soles with hardly any wrinkles on them. It just fits her foot shape sooooooo nice!