Thanks for the detailed feedback! It's always great to read about people playing and enjoying the mod this much! Will get into updating some of the UHVs soon enough, there are already quite a few things that came up in the past few months. The Auld Alliance will definitely be improved in some form. Even though 1.5 has just been released, I will have quite some modding time during the second half of June and July, so there will be a huge number of changes in the next couple months too! It's a bug if the Quarry improvement didn't connect the island to your trade network. Actually I recently added a similar function to Realim Invictus, and I'm pretty sure it works there correctly. Will test it out, I'm curious what went wrong here.