True about the 3 sizes of Aerons. I'm 6'3, and find the vanilla Aeron (size "B") to work. If I was 6'4, I might feel differently, though, because I use it at its max adjustment.
Also worth pointing out that height recommendations are just a guideline and two people who are the same height might fit differently in the same chair. I’m the same height as you but I’m all leg. The larger Aeron fit me better.
