I did. Used that measurement to adjust the speedometer and then verified with GPS that it was displaying the correct speed. Now I'm going to have to go out and check again. Have several thousand miles on them now, but I'll go take a look. Maybe it's the fact that I've got the 12.50's squeezed onto the stock rim?
So, post up a pic like the one below. Make sure it's aired up to 30 PSI and with the full weight of your Jeep on it, use a tape measure to measure to the edge of the tire's shoulder (NOT the highest point on the tread). In fact, add it to the database thread.