If beauty is in the eye of the beholder then the "perfect" sound must be in the ear of the listener. Personal opinions or computer sound clips are a great place to start and this forum has some great advice. I also believe that there are a few " Guru / Yoda's" on this forum, such as Glider and Hobbit that I have come to trust with their advise and answers to the performance changes and technical aspects of the various Stage 1 options. But ACTUAL SOUND is soooooo personal and to make a fully educated decision, IMHO, you really need to physically hear the set-up you are leaning towards. Your local HOG chapter, local dealer, poker run, ralley, etc, is a great place to start. In a perfect world it would be best to hear the set-up at idle, highway cruise, fully loaded, etc. It would also be great to hear the sound while riding another bike that is behind, along side and in front. Also nice to stand on the road and listen as the bike passes by.
Another think I want to mention is that I’ve heard a few varying opinions on Rineharts in this thread. Most of them do not clarify if they are talking about Slip-on’s or True Duals. These are two completely different sounds IMHO and the TD’s, too me, are much louder than the slip ons.
Heck, maybe we can use this forum as a tool to help prospective exhaust buyers to meet. For example, I live just north of Seattle and would be happy to let someone listen to my 08 Ultra with Rinehart TD’s, (quiet baffles) Arlen Ness Big Sucker & PC3.