I thought about logging roast but gave it up as a good idea doomed to fail. I just go by gut instinct. I know my method is way different to what you guys do. I rely on Smell to tell me where the beans are at, sound obviously and also when cranking you can actually feel when the beans are expanding. Having tried to roast a lot of different beans I have a good mental map of each one now and know what to look/feel/smell for. It may seem unscientific to some, but it works for me. It would be impossible to log my heat/temp as I am fiddling withthe gas knob all the time (Which is tricky when one hand is cranking, one holding the handle...I do it with my knees). Any way is this actually relevant to what this thread is about...sorry if it isn't.
Matt