Well, I've had 0.9 (Release Candidate to use poncy terms) out for a bit, and no-one seems to have complained, so it's time to call this a release.
This mod started as a way of not-quite-cheating-outright. Basically, for when most people would have been sane and just enabled the infinite fuel, I added these parts (or actually, a primitive early version of them) and still flew, and checked fuel and all that, they were just absurdly overpowered. In fact, it started with that RSS-start-on-Mar