Hi Peter,
Beauty is in the eye of...you know where I'm headed with that one...However for what its worth.... I've got a 2003 Road King S.Eagle, came with S.Eagle slip-ons, & they were too soft/mild for me. I was accustomed to Python3 on my Super Glide (loud), so first I put on Hooker slip-ons & did like the deep sound & tunable part, but wanted some more increase in performance & bought BuB Rinehart true dual system. I may stick with the bub pipes & go back to the Hookers? I got the performance increase, but again a bit soft on the sound for me! I just ordered optional baffles for them...hoping to correct my wants/needs. Not sure if this is any help for you, however i will strongly urge you to listen b4 you buy, if at all possible! It will save you some $$$ Best of luck!!
Steve