GhosT_DoGG,
The girth ar widest point is similar to the one at the base!! I know its strange, but at the base the thickness is underneath which can not be seen. So I am around 5.8" all along the shaft well except near the head which becomes thiner.
I agree the widest part is where it stretches the vigina better, therefore the girth at the widest part is the one which is more important.