I did some measuring a little while ago. My original length was 7.1 inches, and thickness was 1.5 inches, with a girth of 4.7 inches. Today,I'm 5.5 in length, from my pubic bone, while thickness and girth is essentially unchanged. My soft length is shorter than it was originally, at 2.12 inches, while my thickness soft is now .87 inches. Previously while soft, I was 4.12 inches long and 1.12 inches thick.
There is a big difference in how my cage fits from when I first built it. I used to fill it completely when flaccid. Now, the tube is too long and the inside diameter is about .25 inches too large. I never flopped around inside it like I do now. It was very snug and felt really good when I wore it, and when it tried to become erect, there wasn't any room for it to expand. Now, it's loose.