Quoted from Luk3:I read something about Jersey Jack... Supposedly he serviced pinballs but there was one manufacturer (Stern) who was slow as hell to release pinballs so he had less and less work until he made his own pinball company.
Where did you read this? It’s absolutely false.
Jack’s business was selling games to home collectors. Stern tried to increase sales to operators & get more location players by making games simpler to service & understand, with short ball times & less deep rules. Iron Man, Tron, Big Buck, Avatar & Rolling Stones came from this era. Jack’s customers didn’t buy these games - they wanted full featured & deep games. So, he decided to start JJP to make a product that his customers wanted, but didn’t exist.