sounding

Ok, let's face it, aftermarket pipes' only REAL value is to enhance the aural experience. So I want to know what pipe sounds best on the hyperstrada. Can any members with different exhaust systems installed please make a good recording and post it here? That will help the rest of us fence...

Since the 821 sings such a beautiful tune, I was wondering if you guys had a point in the rev range that you feel sings the sweetest tune? I love it about 3500-4000 myself, and on deceleration is a really beautiful sound...