It bothers me a little bit that Jeb, Bob, Bill and Val get "veteran status" without really doing anything, whereas my Kerbals who have been halfway around the galaxy don't get anything for their troubles. So, I fixed it. With Earn Your Stripes, once a kerbal has performed x amount of flights, and logged x amount of hours (configurable in the Difficulty Settings Menu, by default it's 5 Flights/2 Kerbal days of flight time) - they will be awarded an orange suit. You can also strip the "Big 4"