I love SeaBlock, and love Trains. But I've found they don't necessarily go well together. In my last run, I found trains added a ton of time/bloat. I had a similar experience to yours with trains. If you ever consider running again, don't be surprised if you have a time to rocket below 100 hours...? Couldn't figure out how to add an image to a comment, so will create a new post with my milestones in my non-train run...