How critical is it going to be to upgrade the Elemental Hubs to level 3? I currently have Gate of Dimension at level 4 and I have 3 of each Elemental Hub. All are at level 2 currently. I don't currently have the tech to further upgrade them, but I will soon. But it looks like it would cost several days of production to get the resources to do the upgrades with and to actually do the upgrades. Is it worth it? I made a lot of stuff with the hubs while my Gate of Dimensions was upgrading, so right now keeping it running is not a problem. Will I be able to keep the Gate busy long term with level 2 Hubs and skip the upgrades? Or if I spend the time to do the Hub upgrades now, will I make it back in the last half of the chapter? I have Blooming Trader at level 26, so I am getting a pretty good boost to what my Hubs make.