missing info Drop tanks drain at different speeds

[Reflected]

I noticed during testing this campaign but apparently it's not just me. One of the drop tanks empties much faster than the other one:
 

 

[Chipwich]

I was flying mission 7 this morning and when switching from the left to right drop tank, it refused to feed.  I have noticed this before, so think that it's a bug in the module, unless there is some procedure that I missing to switch tanks.  The booster pump was on.  Fortunately, since we weren't going to Berlin, they weren't needed 

[NineLine]

I'll try and test soon, but if either of you have tracks to share it would be helpful to see what procedures you are using so I can replicate the same as you. Thanks.