I think we are all quite excited about the bike and one little thing we hear, we start o dissect. Nothing wrong with that, I am glad that we are hashing everything, 'cause that keeps me entertained.
My take on these two issues - sound and smoke are that it's premature for any conclusion. I like the leaf blower sound at idle, not sure If I like the reving sound though. Of course recording devices make a big difference as someone already pointed out.
When riding you won't necessarily hear it with ear plugs, so it doesn't matter. But then again, there is Akropovic (sp) exhaust to fancy your needs.