You can simply invest nothing into production and use draft from other nations - it gets better than the advisor. Counting Houses are good, but they're too far in the future - you don't need to worry about them in the first 70-80 years. Extra efficiency is also not very helpful early on, since production income is a very small portion of your income and trade good prices are pathetic. I think there's no need to invest into production until you get Gov 10.You go with a Production adviser obviously, because Workshops and Counting Houses are worth it. The adviser alone should be enough to keep your production tech ahead of the tech curve, freeing you to make direct investments elsewhere. The extra efficiency now is just as useful as it is later on, the cumulative effect just makes it more noticeable later, and higher efficiency boosts the effectiveness of docks and trade rights.