Just made this account to report some problems. First of all, I've been using this mod for a long time, at least since 1.0, so I want to say thank you to the creator.
Another thing is that I'm using this mod in 1.4.3 so that might be the reason behind these issues, but I don't know.
^EDIT: Disregard all of that. This thing with the different amount of fuel in the mentioned parts only happens if you use the craft files in the OP... if you place the parts like usual, none of this happens. I don't know how I didn't notice this, my bad
Another problem with the craft files is that there are some sort of issue where some parts are not actually connected. I mean, they are connected, but it's like they were displaced using the offset tool so they are not actually touching each other. An example:
I understand these problems are not gamebreaking and easily fixed by the players, and you may have other priorities, but I wanted to report this just in case. This is a great mod and the first parts mod that I get. The models and textures look amazing!