I've been getting a lot of questions about ground school so I will try to lay it as best I can for everyone. Prior to the official ground school you will go through an IFR refresher course followed by an evaluation. If you make through then you'll move on to PC12 initial FO ground school. In ground school you will learn about the aircraft and avionics systems of the PC12. In addition, you will learn a lot about company operations with regard to flying in the 91k and 135 environment. After ground school you'll go to Dallas for sim training. I haven't been to the sim yet so I can't comment there. So, what should you do to prepare for training? Well if you know your IFR skills are a little weak then I'd highly recommend that you find an experienced cfii and spend some time in a sim nailing down departures, approaches, holds and arrivals. Many people have washed out in Dallas due to lack of fundamental IFR skills and knowledge.