WING5 Q&A: Controller with local APs and remote APs. Which MiNT link levels to use?

This is a very popular question that is asked at literally every WING5 training (and, I must admit, due to misinterpretation I was giving out the wrong answer, so read this). Getting those link levels is easy, troubleshooting the resulting system instability issues is not easy. We typically know that single-site scenarios use Level 1...