Turned out good AND bad.
'
In 2v2:
I don't know necessarily how much of this was my build's fault but I'm guessing very little. I noticed next to no difference in my own performance in 2v2 other than the fact that I was no longer kiteable. We still went 3-7 this week, lowering our 1805 rating to 1730. Was quite a painful experience. Of those 7 losses, 6 teams had a warrior and a healer though so like I said... not sure how much of it was based on me.
In 3v3:
My team rocked the house, going 12-0. Brought our rating up to 1730 as well. I can definitely attribute my success here to the new build, as this team was stuck at 1600 with me as mutilate.
In 5v5:
Team did ok, going 7-3. Only at a 1600 rating though, and I blame most of the team's failure to the other individuals.
Overall:
I'm not quite sure yet if I can safely say shadowstep performs worse in 2v2 combat or if we just had an off week with bad luck (I had blind miss at a pretty influential time). I can definitely say though that my perfomance greatly improved in 3v3 and 5v5 combat, as I was nearly unkiteable in 3v3 and able to keep a healer locked and out of the fight in 5v5 (cs -> kick -> vanish -> garrote -> kick -> KS -> blind -> prep vanish repeat.))
Keep in mind I'm using a blue pvp weapon as opposed to my epic season 2 dagger for mutilate. Thus, it's likely my failure in 2v2 is because of this.