Kato the bull was a Rawe ranch one - out of Strome, AB some of Canada's pioneer Charolais breeders I believe. He was pretty much all of their own breeding on both sides if I remember correctly.
He was not what I think of as a Full French type, he was a smaller frame, extremely muscled, lighter boned bull with a fine, short hair coat. His calves were certainly not full French - he had an 84lb bw, the calves would be 80-90 on average and we never pulled a calf of his.
The full French to me would be taller, heavier boned with less pronounced 2nd thigh development but instead a deeper, longer thigh muscle. The full French also tend to have longer coarser hair and a longer coarser head. The only full French herd I have seen in Canada was full of cattle with really bad foot structure. I would expect the Full French would still breed higher birthweight calves - I know the purebred Charolais in the UK, despite being British citizens for 45 years now are generally still hard calvers.
For anyone interested take a look at this French Charolais website link http://www.charolaise.fr/index_en.php
If you can't be bothered - under the Charolais breed standard it states;
"The Charolais breed standard precisely describes the phenotypical ( visible ) characteristics common to all animals of a same breed. Animals of pure Charolais breed all display the following characteristics
1. a spotless, uniformly white or sometimes cream coat,...."