Over Father's Day weekend, I finally got around to installing the two 3" dial temp guages on my CG. I installed them at either end of the lid, just above the grate surface. I fired up the smoker and did some beer butt chickens (sorry, no pix). I removed all three of the tuning plates this time, and found the temperatures at both ends to be within 5 degrees. I put the ET-73 probe in the middle of the grates, it read pretty close to what the dials were telling me. All-in-all, I'm very pleased with this mod. Unfortunately, I think the tuning plates for this smoker are not necessary... but the baffle works beautifully. I'll try to get some pix up later today of the guages install.