The added stress of manual calibration and wind for bombers is a bad thing. I dislike it and so does most of the people that continuously complain about it whenever they have to fly bombers in FSO, which is every time I am in range of vox comms of people in bombers in FSO.

You can practice offline as far as I know. It's in the set-up tables. If I recall there is no chance of unmanaged practice sessions on the SEA servers. You might be able to arrange a time for a practice, if you can find a tame person with the keys, who is doing nothing else at the time.
Actually, I would really like to see a lot less of this type of calibration. It is difficult enough to convince most people that they are having a good time in a buff. Clearly I am an exception. The problem is that they believe they have zero hope of completing a mission and it starts to make old "I Love Lucy" re-runs look like much better fun return for effort expended. Once in while is cool, but every freaking FSO gets a bit tiresome. How about for FSOs where there is a preponderance of bombers and minimum of targets?