Question: Is ability of boat to maintain depth tied to crew ability?

[letterboy1]

I noticed that when I order a depth like 120 meters it becomes very hard to maintain depth or even to ascend again without blowing balast. Is this realistic? Is it somehow tied to the crew's abilities?

[sergei]

No one is quite sure if it's tied to crew experience or due to the sub buoyancy modeling.

Further reading
http://www.subsim.com/radioroom/showthread.php?t=165011
http://www.subsim.com/radioroom/showthread.php?t=164217&highlight=awful

Plus
http://www.subsim.com/radioroom/showthread.php?t=165478
Mod that changes sub buoyancy.

[letterboy1]

Thanks Sergei, that explains alot. :)