Hi, This is my first post on this forum and I'd like to start by thanking Blakbird for all these quality instructions and all those who contributed. It's a dream come true to be able to build those amazing piece of engineering. However I wanted to point out a mistake in the design of the crane loader for the train module. In step 4 on page 183 of the instructions it should be 2x 7L liftarms (rather than 9L), as can be seen on Akiyuki's video. 9L liftarm is too long and thus put a lot of stress on the structure. I had power problems with this module but was able to run it with a single M motor after this change.