Lumberyard and Forge 'Special Bonus' Upgrade Effects
Not sure if this has been asked - tried to see but the search function is pretty useless.
Anyway, how does the upgrade bonus work. For example, If I take just a single Lumberyard to Level 25, do I get the 2% off/def bonus? If yes - is that bonus then increased with subsequent Lumberyard upgrades ie up to 10% once all 5 are done ? Not sure I would want to upgrade them all anyway (it's still pretty naff that the storage limit per Lumberyard is so low & reached so easily) but just wanted to understand how it works.
Thanks.