With mine, arms are right at or slightly below my shoulders. They are very comfortable. I had 12" Wide Glide bars on an old Fatboy and loved them, but have had stock SG bars on the last two SG's. I never found those to be uncomfortable bars for the most part.
I ordered the Yaffee bars cause I thought they looked killer but also thought they would be comfortable. They ARE very comfortable and I feel lilke I have even better control of the bike. They also are a perfect compliment to the 21" front end. Oh yeah...I had forgotten the benefit of a natural roll on the throttle by just pulling versus leaning over the throttle and having to assertively twist the wrist on the low bars.

 

I have Klock WErks Ergo back bars. They sit just above where my stock bars were. Enough that I had to get rid of my fairing mount mirrors. I could still bring them up a bit higher. They would be just above the speakers. At times my elbows get sore, I was hoping that possibly would help?

 

Here are a couple of shots of my hands on the cyclesmith 13". Pardon my gut on the second photo. Although it might not look like it. This hand/arm position is awsome for short and long rides.

 

I have 13s as well... I wish I went 15...

 

12" PYO Monky Bars

 

I have 14" from HCC and aboso-fu@#king luv them!!! They stick up barely past the fairing and the ride is 10x more comfortable IMO. Definately get some apes

 

Think about what size you like, then go up one step higher. Wish I would have, but I still like mine

 

These are WO 515. I have since added black mirrors.

 

I have 16's and love them. I ordered 13's, too short. What a difference. I will have apes from now on. Check out my gallery for pics.

 

Here is mine with 16's cyclesmiths. love them!!!!!!!!!!!!!