recently purchased the Masterbuilt XL from BPS...found quite a few faults that are documented well throughout this forum. took care of the door leaking problem with some felt adhesive...but the major problem i am having is keeping smoke going for more than an hour at a time. as everyone knows the woodchunk pan in this thing is a piece of junk, so i threw it away. set up my own mod in it, using a cooling rack above the flame, and then a baking pan to hold chips/chunks....pic below... so...this works pretty well imo, better than the previous pan where everything would catch on fire. only issue im having is maintaining smoke for more than an hour at a time. ive tried everything, chips, chunks, foiled chips, foiled chunks, foiled chips and chunks...nothing will last more than an hour. ive used several chunks at once, only gives way too much smoke, and all 3 chunks last 1 hour. this pan does get really hot because the metal is so thin, do you guys think that may be the reason? should i switch to a cast iron skillet on that rack? has anyone modified in a way that they are able to achieve TBS for more than an hour at a time? thought about getting an AMAZN but i dont want to have to give up one of my cooking racks to house that. any input or suggestions would be very helpful here.