I put this spreadsheet together as I had the same question over and over again when comparing guys. This does not however take into account the severity of an error as the higher E guys obviously are more prone to the 2 or 3 bag variety. What it does show is a pure OBP vs OUT comparison.
In your example a 3e18 has a OBP/OUT of 52.7/47.3 and a 4e8 has a 61.5/38.5
Anyway, for what its worth...
https://docs.google.com/spreadsheets/d/ ... sp=sharing