On the subjective piece I find the C&J lasts a little better fit for my feet - 348 and 363. In AS I haven't tried the 724, however I have the 48 in an Ex makeup of a HG style, 99, and 87. On the objective, I agree that the leather quality in the AS Ex is equal to C&J handgrade. On my special make up of the AS HG style, the burnishing is nicer than on C&J HG. My AS Ex also have nicer soles- semi-fiddleback than on the C&J HG. I also like the slightly higher heel stack on the AS Ex.