This is exactly the sort of thing that blinding is there to prevent. It is the same reason we in cosmology blind our data - to prevent us from biasing ourselves

This is exactly the sort of thing that blinding is there to prevent. It is the same reason we in cosmology blind our data - to prevent us from biasing ourselves towards what other experiments have found. Also, the charge of the electron experiments you are talking about happening over 100 years ago, so not that relevant to today :)