Hello all I have used my GrillGrates now three times on my Weber gas grill. I really like them. I feel like I'm getting lower or slower temp readings on the thermometer on the grill. Is this normal? I am not questioning the performance of the GrillGrates. I suspect they are heating up nicely. I just feel like with them on, that temp gauge is showing that the grill is slower to heat up and not getting as hot as what it would have previously. For reference, I have them laying on top of the factory grates. I have not checked the temp at the GrillGrates.