I’m not sure I understand what you mean by the 2mm thinner. Are you measuring the height of the stone when set flat on a surface? In any case, the total thickness should be pretty close to other Wicked Edge stones, with the exception of water stones. On average, the stones/plates themselves should be about 3mm thick, with a double-faced tape attaching them which has a 0.6mm thickness. My stones average about 30mm from face to face. If yours are about 28mm, I think something is amiss.
I would think that bending a 3mm thick ceramic plate like this would crack it for sure. Give Kevin at Wicked Edge a call. If it’s wrong, they’ll make it right.
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