I noticed that the probes were extremely responsive to temperature changes. But the pit temp not so much. I was just testing it out and I opened and closed the hood a few times. The probes picked it up and I watched them drop and rise almost instantly. The pit temp stayed solid. I also moved the probes around from different things that I had on the grill. Again, the probe temp was nearly instant. The pet temp didn't change again while I was moving probes around. Is it just me? Either way, it is a very solid upgrade to the app and I liked what I saw. I'm going to do a tri-tip tonight and fool with it some more.