Thank you for your interest in my greyhound handicapping system. I developed the system via trial and error. It took me approximately 100 hours over the course of about six months. I have been using the system in its present form for about 6 years with great results. I go to the track about twice a week and I have an average take home of about $500 U.S. My largest take home was $3,200 U.S. There was one day where the program contained 15 races and I won all 15. That was fun.