I have bought this little beaut below but not actually getting it until January. Already thinking of a few improvements and modifications though. The current owner had it custom built to his spec and it cooks great but he says that it has to be refuelled every 2 hours or so to retain temperature. Is this right? It sounds a bit too often in my opinion. I'm used to cooking on a Kamodo Joe and like how little that needs refuelling, I understand that it will be more often on the big rig but 2 hours seems a bit off. There are a few areas that need sealing with fire rope, particularly around the hinges which are not air tight at all at the moment. The RF flow plate is made from 6mm steel (1/4" inch) which seems pretty standard but I was thinking about maybe adding a RW/heat plate with air gap underneath to add some thermal mass to it. Has anyone created a layer of fire bricks on the RF plate to add thermal mass? Aside from them getting mighty greasy but that aside would it make any difference once heated up?