[Suggestion] Buffs

It strikes me as there is a problem with the manner buffs are implemented.
Depending on where in the production cycle you apply the buff you can get wildly different results.

Say for example it takes 12 minutes to produce 1 wood
If you apply a 30min buff at 9minutes the buff will provide extra wood at (buff time)
1min, 13min, 25min.
However if you apply that same buff at 1min of the production cycle you will get extra wood at (again buff time)
11min, 23min

Prehaps buffs should count towards X production cycles instead of X time