I’m looking forward to @jonj response.
Paul/ @jonj, I hope it’s alright to chime in here as I have the Signals/Billows setup as well. I’ve been using it for a couple of years and I use it every time I do a long cook. I couldn’t be happier with it!! And, I have had no trouble getting 3 probes in my 32BB, inserting one at a time. Although I did have to gently bend a couple of my angled probes slightly so they would make it through the port. I’ve not used any other type of setup, so I can’t compare it. I’ve always been partial to Thermoworks and they have great customer service, who you can actually speak to. The phone (Apple) app software works very well, while away from the house, as long as you can get a Wi-Fi signal to the Signals unit. 100% would purchase it again. Lastly, the Billows damper is a must with the KK to reduce some of the cfm airflow. It’s a $4 part that you can’t be without.
thanks,
don