Hello, I am using the Mod "Too Many Prod Techs" along with this one.
Sadly there seems to be an Issue. When an Item has reached 300% Productivity and I then research with the Mod from above the Productivity will indeed go to 310% but after a while it resets :(
I am using "Remove Productivity Cap" to allow for more scaling after the 300% from your Mod.
Is it possible to fix this issue? I would like to see how far I can push things.