I am 6'3" and had pretty impressive shoulder pain that I tried to remedy w/risers.
I finally pulled the pin on the Heli's even though I feared they wouldn't give me enough rise - smartest decision I made since I decided to get my B. It took about a week of tweaking to dial 'er in and no more pain. AND, if I want I can adjust any/all of those angles while on long trips although so far I haven't needed to.