Yeah, still have the problem. Took it in to dealership twice, but they aren't any help. They just say there's no codes, and won't look into it further. Seems almost like a fuel pressure problem or spark problem, but I don't have the means or know how to check it out myself.
I did get a diablosport tuner, and the canned tune seems to help. Just started the process for a custom tune from Lew.
I did do a log file and noticed the fuel pressure drops when first accelerating. Does anyone know if this is normal?