I was talking to Boostjunkie about it too. He's talked to Subaru about it and I guess they
said there is nothing they can do right now. But I guess they are aware of the "problem" and are going to work on a ECU reflash or something.
But, once I get more than 1000 miles on my car I want to dyno the car and see if it "studders" during the dyno runs, if so, if it can be seen on the dyno plot.
I'm sure it can, because it feels like a few rapid successions of hiccups or something and during that brief period, it definitely doesn't feel like it's accelerating smoothly, therefore it's got to be losing power for ever so brief period before full boost kicks in.