After the 25 men raid tonight we went back to Ulduar 10 to finish off Yogg-Saron... and after a few tries we got our acts together and gave him a perfect clean kill! To be honest, the fight was easier than we expected - once we got to phase 3, we were like "this is it?". I do hope 25 men version is somewhat more challenging for a end-instance boss (excluding Algalon if you are counting normal mode :P). By the way, i am epic fail !