Fuel me up, Buttercup, Don't break my parts. (Fueling station)

[Steve-S]

I finally managed to build a fueling station that could carry a sizable amount of fuel to a 150K orbit. Thought I'd share it. Reasonable sure it could be done more gracefully and I needed to use MechJeb to fly it for me. I'm having an odd issue with two of the stages that are, sorta, asparagus staged. I have 4 tanks feeding into 4 other tanks. 1 empties 1st and the craft does an odd loop. I sorta caught it the 2nd time and shut of the engines and manually staged that one and only wobbled some. Any ideas why 1 out of 4 is emptying just a tiny bit faster? Is MechJeb possible altering throttle differently on each engine to correct for off balance? Dunno. Anyway I had to xfer some fuel to the last stage to finish the orbit but still put 4 full orange tanks and 1 almost full orange tank into 150k orbit. 5 docking ports, lots of RCS fuel, tons of battery and 4 gigantor arrays. Now let's see if I can add an image & the craft file. :-)

https://dl.dropboxusercontent.com/u/44910027/Fuel%20me%20up%2C%20Buttercup.jpg

https://dl.dropboxusercontent.com/u/44910027/Fuel%20Me%20Up%2C%20Buttercup!.craft

Hope that works. I do not see any img or link buttons.