Knifemaker posted about a neat and easy trick in determining where the comfort level should be for the handlebars and you.
Sit on the bike and close your eyes, hands on your thighs, then lift your hands up as if get ready to grasp the grips. Open your eyes and see how far off you are.
Ideal would be when you lift your hands they meet with the grips.
I ended up adding 1" risers to mine and then adjusted the up and down. I don't feel the shoulder strain any more or feel like I am leaning forward to relieve the strain. My elbows are at a comfortable bend so turning is easier.
Patriot Guard Rider
2000 VN750 Sere (Serendipity)
1990 GL1500 (Ole Blue)
1986 VN750 EVie (project bike, heavy custom)
VROC # 11628 / 25000-H
ARVROC # 12 Coordinator and Crowd Control
OKVROC # 18 (H)
TNVROC # 45 (H)