Originally Posted by FBinNY

I also don't like to throw mechanic under the bus, but regardless of what the problem is a professional mechanic who sees the bike should be able to deliver a better analysis of the problem than anyone on a forum.

This is a high end bike, and warrants a proportionately diligent assembly. Your points are all valid, but it shouldn't be the OPs or any customer's job to tell a professional mechanic how to make a new bike perform well.

There are numerous causes of less than perfect shifting, including all those mentioned in thread and others, and if this were a $350.00 I'd be more forgiving, but at this level, mechanics have to step up and deliver a quality of assembly and adjustment that ensures that their customers get 100% of the performance they pay for.