I am 72" tall. The second bow I ever made was 75". It came in at about 35#@28". This was before I had a scale and I didn't yet know How to judge the weight by feel. Since then, I've chopped it down to 68" and it draws 46#@28". Right now I'm working on a Maple board bow that is 72" long, but that is only because it is a narrow board, and it doesn't have the greatest grain orientation.
Dale.