Some will find this kooky; I think it's pretty cool.
When he was a teenager, he was struggling to shoot in the 60's from the back tees. He decided he would play the red tees until he could shoot in the 50's in an effort to learn how to score on the course.
It took him 6 months to do it, but it taught him how to play the course in order to score.
Whatever it takes.