Prusa i3v 10" too "thin" prints

[Stigern]

Dunno how to explain it, but it's almost like the nozzle thinks it's lager than it is:

20141120_161052.jpg

I even tried to decrease nozzle size in Simplify3D from 0.4 to 0.3 without any changes.

Anyone got some ideas?

EDIT:

Come to think of it, this happened after I updated to latest Marlin firmware. But I think I managed to modify every aspect of it to fit my makerfarm printer:
http://pastebin.com/ETztED9K