Rate of temperature change and inverse rate of mass change overlaid. This combination of measurements gives you a strong visual indication of blanch point, first crack, and second crack even if you have no idea how my machine calibrates compared with yours. It's also a mess.
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The really neat thing about that mass rate curve is that you can see as first crack is finishing, the rate of mass loss settles back down to where a linear progression from pre-1C would have been (until 2C kicks in and pushes mass loss rate back up again).
Also, it looks a little bit like Nessie.