Can you point out to the source of coal liquefaction numbers? I don't remember them in FFF, just general "a lot more heavy oil". Also there were mentions of possible smelting speed change to conserve smelting array ratios, can't see it in the mod.
The coal liquefaction numbers are on of the estimated numbers in the mod.
Yes smelting was suggested, but not confirmed as being changed so we left it out. Hopefully this mod will be deprecated soon when 0.17 is released.