yeah, it makes a great addition with the Fake Out Start. With Fake Out, you can use it as a lead, and with the Life Orb, it gets that extra kick, allowing it to usually 2 HKO other starters with its large base Atk & Speed.
I would go with the Focus Sash though, because I know for certain that my ******* has crippled just about every Weavile@Life Orb set I have seen, and that's about 30...lol
~M51