Good thing I made a back-up pair of tiles,
because now I've got scrap parts to test glazes. Shiny white on the left, matt white on the right.
There's always a learning curve.
On the first cracked pair, I let the packed clay dry too long before I reinforced the back.
The second set was packed all at once and bisque-fired just fine.
Now everyone, please pray to the glaze-firing gods because my back-up pair
is now my only pair and time is running out.