I'm no Einstein but I do greatly admire his humanity and especially his ability to simplify very complicated topics to the point where he could educate everyone about his theories. Great minds and great people have the ability to simplify and I try as best I can to emulate that in what I do. Weak minds and those trying to impress will complicate everything usually because they don't fully understand the topic.
I did my first test roast with the insulation and my preliminary results are very encouraging. While the time to get the ET to where I wanted o drop the beans did not change using the same program, I did get to first crack significantly sooner even lowering heat after drying (from what I usually use). I did however over-react and lower the heat at first crack more then necessary and stalled the roast for a minute or so at about bean temprature 407* towards the end of first before recovering with more heat added. I think with some patience playing with the heat, this modification will improve my cold weather roasting.
More detailed data will be forthcoming with my next roasts.