Hey guys! Got KSP for a week now and I think I learned the basics pretty well - got satellites orbiting a lot of planetary bodies, got a basic space station up and running, had my first Munar landing. And now I am at my wit's end concerning a specific rocket design. You see, this is my Munar lander - it launches like a dream, easily controllable, rock solid: https://dl.dropboxusercontent.com/u/100318/ksp/munar_lander.png Now I wanted to add fuel tanks to my space station to have it work as a refuelling station - nothing fancy, using the same basic rocket design: https://dl.dropboxusercontent.com/u/100318/ksp/fuel_pod.png And this thing doesn't work - it feels wobbly from the start and starts running out of control once I try to maneuver into my gravity turn. And I don't get it! The payload is actually less than on my Munar lander design (23.37t vs 27.56t)! I figured that it might be due to the remote control part not developing as much torque as the 3-kerbal-pod, but adding SAS modules still doesn't help. So: what am I missing? Thanks a lot!! P.S.: Craft files for those who are interested - got fuel balancer, mechjeb and kerbal engineer parts running, the rest is stock https://dl.dropboxusercontent.com/u/100318/ksp/KerbStation%20FuelPod%20Mk%20I.craft https://dl.dropboxusercontent.com/u/100318/ksp/Mun%20Lander%20MkII.craft