How to Build a G.O.L.F. Game IMHO is the best instruction video I have ever seen. It is video I keep coming back to and understand more as time goes on. Incubation can be quick or can be slow depending on the student and where they are at. My improvement has been based on this video, this website and Brian,s and Chuck,s website. Like I said incubation can take time the Penny does not always drop straight away. That does not mean that the information is incorrect. Work on a flat left wrist, lag pressure and your plane and things have to improve.