I should clarify that google has not revealed a solution, there is plenty of info on EPL. I have tested this all in sandbox mode on the pad, in orbit and landed on Mun with engineers that have 5 stars an minimal stupidity, I am using the 32 bit install of kerbal for mac installed through steam. I have installed EPL through CKAN. The problem isn't that I can't get productivity above 1, it is that it doesn't move from 0 at all, each individual modules productivity is always 0, and the vessels productivity is 0 regardless of configuration.