I've forgotten so much, and my google-fu is failing me.  Trying for my first Minimus trip of my first career since returning to the game.  At current tech, Poodle and Reliant look like my best Kerbin orbit to Minimus Orbit engines.  Poodle is 1.75 tons with 250vac Kn.  Reliant is 1.25 tons with 240vac Kn.  These are pretty close... so - from a fuel-economy standpoint is there a real difference between the two?   Does it make sense to use the lower thrust, lower weight rocket as my final sta