I recently mixed up a batch of Variegated Slate and Waterfall Brown from Mastering Cone 6 glazes.  I did a slow glaze firing with a 15 minute soak.  The cone 6 cones bent down to just touching as they should.  However what I found was my really smooth Highwater Clay called Little Loafers did wonderfully with the glazes while all other clay bodies had blisters or pinholing.  These were all from th…