All the smaller teams are beating the bigger teams. Trevisio beating Munster Zebre beating Cardiff Blues Newport Gwent Dragons (my team) beating ULSTER! What's going on?

a lot of the big teams are still resting their Lions players but those are still shocks, although I'm sure Treviso beat Munster in Italy last season as well.

Not sure on the Cardiff game but the Irish sides have always been slow starters.