I am getting ready to go to an Ultra or Road Glide leaning toward the Road Glide. My back is my problem. Can anyone give me reasons to go one way or the other? I have heard that there is less wind buffeting with the Road Glide. Can I expect it to be more nimble or ride different? I am 6', does one windshield hit better? I understand that you can add the same storage as the Ultra or would something be missing? Thanks in advance for your opinions.