Now that I have my own studio and electric kiln, I'm moving from cone 10 clays to cone 5. This new world of mid-range clays, glazes, and firing is like starting all over again.
I'm uncertain about whether cone 5/6 ceramics are correctly referred to as stoneware. Pretty sure that the term "earthenware" refers to low-fire ceramics, but I await the wisdom of those who know better about these things. :-)