I'm so glad I'm not the only one to have issues finding the right seat adjustment.
By the way, my "golden number" for the 737 seat's height is 7. Anything different from that is a complete disaster.
I'm a short fella (1,64m)... And probably that adjustment is still low for me ! I believe that the correct adjustment would be 8 or even 9. But I just can't fly that way.