How do they fit all that on the apron card?
This is a problem I think. No way even a good player can read the card and then smash out a top score. I guess the manufacturer/operator want you to keep putting money as you try to work it out yourself. I've found the PAPA tutorials really education and entertaining.
http://papa.org/learning-center/video-resources/tutorial-videos/ They tend to focus on the best ways to score and not all of the obscure rules that don't score so well. Still got have the skill to pull it of though.