Im sure that this is in the wrong place, but I couldn't find the "Cooking Equipment Q&A" section. I have a DeBuyer Mineral-Element-Frypan which I am more or less happy with. The less is partially because i can't get it seasoned, and, whats more important, because it seems to have popped inward a bit (a few mm, but noticeable in how the oil moves to the sides) in the center since I bought it (a few weeks ago). Is this normal? What on earth can be done about it? Also- It gets scratched real easy by my cheap soft metal spatula- doesn't that ruin the pan? And how the heck am I supposed to clean it? I followed the instructions to the letter, and I either remove what little season I have on it, or I leave carbon stuck to the surface.