Butt and Egg temp. monitoring

This is a theoretical question. I made a phenomal butt about a month ago, and quite frankly, it is time for another. Last one was almos 9# and took about 17hrs at 240-250. I started it at 10pm and was consantly running outside to check the temp of the egg to make sure there was not any wild temp. fluctuations. I lost a bit of sleep. I have since procured a wireless thermometer, which is great for steaks, chicken, etc. But seeing as how I am not going to be worried about taking the temp of the butt for 17 or so hours, i feel I am more worried initially about the dome temp. So I was going to gator clip the probe of the wireless termo to the egg thermo and use another wire thermo probe for the pork temp. This way, while I am in bet at 1am a quick check of the wireless thermo will give me the dome temp.
Question is??? AM I overthinking this, or is this a reasonable solution?