I was trying to use some of the parts for this mod recently, but I kept scrapping my designs because they were just too heavy to be of use... then I realized that it was the parts from this mod that were doing it. The experiments were fine, but all the labs and equipment were incredibly heavy. I checked the config files for them, but they all read around 1 ton or less, yet in game they ranged from 30 to 60 tons or so. Is this an error, or is this a feature of career that I hadn't realized? Or are the modules just that heavy? If they are, I would recommend lowering the weight. I want to get as much science as I can out of a ship, and I don't want to waste my time trying to ship and assemble a 500 ton station over Duna, only to get a little science. However, if it is a feature of career, with weight decreasing as you upgrade the modules though the tree, a.) that is brilliant, and b.) sandbox still shows the original weight. If that is the case, though, I still think the starting weight is a bit to heavy for when the parts come in in the tech tree. Don't get the wrong idea, I love this mod. I just think the weight could be scaled back a bit.