Lr_find calculate biggest slope via learn.recorder.plot()

The goal is to find the biggest slope in the diagramm or ?
I want to implement a fct to find rhe lr with the highest slope

Is that a good approach

And to even find a range low lr and high lr is even better for training purposes or

PS I hope the questions is not to baddly written, please it is my first question in this forum :slight_smile:

Again how to get a better technique to find the right lr and is it better to train with a range or just a single lr value

in advanced thanks for your help BIG FAN OF FASTAI