I'm getting a new Landmann 3605 (which I'm pretty sure is the old GOSM BB) for Christmas from my mother-in-law...beat that! I have some experience with smoking, but none with the BB. I've been checking out some of the mods that y'all have made, and I'm wondering which ones do you feel are the most necessary or useful...adding needle valve, lowering the smoke tray, etc. Thanks, looking forward to your input.