I've got a WSM, about three years old now. It's been great but now I'm looking at doing some mods, and wondering which are the most useful. I could definitely use some better thermometage, I just took the long-probe temp gauge from my weber gas grill and stuck it down a top vent, not very scientific I know. Beyond that, I'm looking for some other mods that will make my weber perform better and/or be more versatile. Any thoughts about where to start?