I appreciate your insight Rudy and feel I have a somewhat better understanding of what we have here. Tonight I took the sharks to our club layout and gave them some track time. I played with the horn a bit but wasn't able to pay real close attention as we did a lot of talking it was disruptive.
I'll have to pursue this further as my initial impression is that at present I much prefer the RS5 horns in several other earlier diesels. They are by far louder and richer than our Legacy horns.
The background engine sounds are fantastic however. 
