Any 13 Ultra owners experiencing this?
When intially start out on a ride, I am not getting this rubbing whining noise.
When she heats up....and I'm down shifting ....Pull in clutch and around 30mph down to like 15 mph ...Coasting/low idle , I can hear this noise?? 
Head on over to your friendly dealership and ask to ride another similar bike, then see if it does the same thing. Without the ability to actually hear what you're hearing, it's impossible to say if what you have is normal or not. The bike is not going to be perfectly quiet while coasting, but it also shouldn't have loud grinding or whining sounds.
How old is the bike and how many miles are on the clock? What fluids are you running in the primary and trans? Has the belt tension been verified to spec? Are the brakes dragging? Etc.
Btw, whining can also come from things like an overly tight primary chain (which gets tighter as it heats up) or an inner primary bearing (IPB) starting to fail. Anything we can suggest on this thread is purely a guess of course. If you have a mechanic/technician you trust, have him/her check it out and give you their opinion. If other similar bikes don't make the same sound, let your dealer know you want it fixed. Some will work with you, some will blow you off. If they blow you off you can contact H-D corporate and ask them to intervene. Good luck.
Jerry