I must be messing something up, because I can't get them to even work. In the SPH/VAB they show TWR with mechjeb delta-v stats, but when I launch the craft it won't come online. I'm using a fusion generator, and it doesn't make a difference if I am changing to h3 or d/t or d/h, I've tried mounting the magnetic nozzle in a few different configurations and it hasn't made a difference. Not quiet sure how to hook it up I guess, and I haven't found any documentation with any type of explanation yet ...
