So I was at the local thrift store where I picked up a couple of cake pans. I thought I would try one out to see If I could get a longer smoke time out of them than the stock cast iron box. So I loaded it with chips and covered with foil, then poked about 27 holes with a toothpick. I placed it in the smoker and got the TBS going, soon after it was thick yellow smoke, very nasty. when I opened the smoker the top of the foil turned to flames. What the heck? Can someone school me on how to incorporate the cake pans? I have the small GOSM. Thanks in advance.