Each mould is a 'one off', cracks in the firing process and becomes very fragile and literally falls apart.
Sometimes you end up getting imprints in the cast from the cracks but this time I was lucky and the cast piece looked good. Some spikes and wrinkles here and there, but that's what you expect.
Now the hard work began...
I got there in the end and the piece has now been handed over to another happy customer.