[Xabia Jim]

I'd agree in not being in too much of a hurry to address it. It may actually get worse before it get's better. Use it for a while and let it "work" a bit, then if it's still bothering you give it a grind and fill it.

I'd suggest that a lot of our cracks in ovens are smaller ones that actually occurr along the brick/mortar interface so they don't bother us as much.

XJ