Sayuuk wrote on Dec 11^th, 2010 at 6:21pm:

Btw: Could you please tell me in what order I need to fill the tanks? I did a few short flights now and landing isn't perfect with "full tanks" =) Thanks, Stefan

Hi Stefan.

I empty in this order:

Center 1
Center 2
Center 3
Left and Right
Left Aux and Right Aux
External 1 and External 2
Right Tip and Left Tip

Make sure those paired tanks (Left and Right etc...) have equal amounts of fuel in them or your balance is going to give you a hard time.
Most Commercial Aircraft work from filling the outer tanks first and working towards the center of the plane. So I'm assuming the BUFF does too. I'm willing to accept that I could be wrong.

I'm still figuring out how the fuel pump switches work with them and will let you know if and/or when I do.

Mark