That is a great pitch. I'd like to see a Black Hole Engine that is fueled by dark matter and goes on the FRONT of your craft and PULLS it along instead of pushing it like a IDK... Mainsail engine would do :D. You could have your "vector engine" size, a rockomax size and a mammoth engine size variant, and instead of having a trail that gets brighter and longer as you throttle up, just have one black ball with a white outline get smaller or larger depending on throttle.