[GretchenGotGrowl]

Not sure about the sound, but as far as smoothness you had the same experience I did. There seemed to be some "dead" spots accelerating with the stock tune after the mods. That all went away after the tune.

It wouldn't hurt to do a few logs and send them back to Vince and make sure it all looks okay. Mine ran a bit rich after tuning for the LTs and he fixed that. Most likely you are fine, but it never hurts to have him check it out.