There was an article about the start of the series that mentioned even hot spot wasn't accurate enough because on some hot days it failed to show up on faint edges. Couldn't generate enough friction heat to show up on the ball or bat.Interesting article in the Age this morning where the inventor of the snicko technology said glancing touches like the Jaiswal one are unlikely to be picked up because they don’t make a noise.
It would be hotspot that would pick it up and for whatever reason it isn’t being used in this series.

