Im glad there wre no tigers when I used to cross country ski the Bogong High plains years ago.
Anyhow nice that you have a Gene. My temps are generally 228 to 235 C. I didnt find any advantage to 245 and I just use a lower temp to make the roast take a little longer. With a new bean I just set it to 230C and finish at SC. The Gene is just so reproducable.
However if its the first roast of the day the machine will be cold and so it will start at say 18C but for the second roast it will start about 60C as it wont have cooled from the first. So what I do is before the first roast, while Im weighing my beans to 250 grams, is to turn it on (the temp can be set to say 230 or whatever your going to roast at) and let it run empty. Then when its reached say 150C or 200C just press the cool button and let it do its cooling cycle and stop. Then load that first roast of the day. That way all roasts start at 60C. Better reproducibility I think.