a couple of people wanted to see my red knee with a ruler as proof of its size. Heres its skin from 2007, she is 20 years and a genuine 7 1/4 inches! carapace is 31.5mm (sorry to change units), the carapace grows about 0.5mm per moult (well for the last 10 or so moults) so im hoping that she will get a bit older and a bit bigger!!
http://www.arachnoboards.com/ab/gallery/showimage.php?i=6929
http://www.arachnoboards.com/ab/gallery/showimage.php?i=6929