Anthros, unfortunately, my area of expertise. I have been throught the fit check thing ad nauseum. There are two critical measurements for tall guys. Sitting height is important (you have to clear the canopy). Buttock to knee length is the other biggie (you don't want your legs chopped off during an ejection attempt). In general, if you are not all legs or all torso, you are good to go between 5'5" and 6'3" for ejection seat aircraft. Obviously, there are exceptions to every rule. I am 5'3" and I'm golden in the Hornet. My functional reach is borderline with harness locked in a Tomcat however. As you see, each aircraft has different requirements. I am completely NPQ for helos because my sitting height is too short. I hope I didn't just confuse you more.