I have always felt that the dance it takes to control BG's has always been the age old fight between good and evil. You all know the story....sometimes you are the fly and sometimes you are the windshield.
As a general aviation pilot I am very careful where my BG's are due to the fact I don't want to hit the big green thing.....aka, earth.
And the FAA makes it easy for me because they require me to be between 100 and 300 before and during the flight. I also have to check each hour during the flight to maintain the spread. They additionally inserted a little aside stating, if I am under 100 I need to have something with me to raise my BG and if my BG is over 300 I need to land and at closest airport.
All in all it is not too difficult to stay legal because the thrill of flying far outweighs the requirements.