Indeed, the initial rocket for this is incredibly big, and makes my new PC stutter quit a bit, with a 50/50 chance of randomly exploding or keeling over for no reason. But if it stays straight its actually pretty simple to fly. I basically just started with a simple launcher and lander design, and kept adding more boosters and tweaking it so it would work. My original intention was just to land the little rocket on top, but I was able to land with 2 extra stages. I don\'t know the exact numbers or how efficient this design is, its probably terrible, but you can easily reach kerbol escape velocity with it. Heres some more pics of the full rocket itself. http://imgur.com/a/vTyps