I'm in a close space race with Joao in BtS, leading me to wonder: what space ship design will get to its destination fastest? Is it better to use the bare minimum just to get the thing launched before a competitor's potentially faster ship? Or is it worth the effort to build some extra thrusters or engines, maybe, to speed the ship's travel time? DO extra thrusters or engines affect the travel time? For that matter, do extra casings improve your travel time? Along a similar vein, after rocketry, what is the optimal tech path to follow to get the spaceship built asap?