Our troop does use the blue cards. They just want worksheets for every single merit badge to be completely filled out even the parts that say discuss. They said that this proves they completed the merit badge when it's time to go in front of the Eagle Board. So in other words I don't need to stress about past Merit Badges that I have no worksheets for because the national Boy Scouts won't require him to have them when it's time for him to earn his Eagle rank. This answers my questions and thanks so much!