Optimization inputs steps and robustness

 

Hi all,

I'd like to get feedbacks from advanced traders/EA developers regarding the max number of inputs steps (total number displayed in the bottom right part of the Inputs sheet when optimizing) allowing to have robust setfiles, i.e. without overfitting (aside out of sample data testing).

E.g. how do you link this total number of steps (or number of free parameters to optimize on) to the number of trades? Unless you usually apply other rules to this number to ensure robustness?