I am in Perth for another month, the turbo should be getting put on by a mate this coming week or so. I can't give any results for a while though, because we are getting close to Xmas not sure if there will be time to get any.
No place will give you their specs, but they will be able to give you figures etc. Matt is doing a buckload of testing and graphing on his personal GU as he gets time to in spare time at work with different turbo's, so keep an eye on that thread, somebody who remembers where it is please link to it?