For those of you that have Blaze Kings: Do you use a stove top thermometer? I'm not asking about the catalyst thermometer. If so, how do you utilize the information it gives you, considering the t'stat adjusts the air automatically...kind of set-it-and-forget-it. I'm trying to determine if I should get one. I'm afraid the magnet will scratch the new paint job. So, if I don't need it, no need to take that chance. If I do need it, and learn how to utilize it's feedback properly, then I'll deal with the scratches.