I was thinking the same thing as my Rylo is also made with the 10 oz can and has a flat base while Russ's has the correct curved base and 11 oz can.I have one of Rylos cans, and I love it, but it is made with a 10 oz. can. As far as I know more acurate is the 11 oz. can?!?
RBreplicas is 11 oz. Maybe I will get the 11 oz. from RB one day...