Ever since i played at the PAPA headquarters for PAPA 14 and Pinburgh 2012, i have wondered how they make their machines so difficult. I have a Royal Rumble and i have taken off the outlane rubbers and the post rubbers, as well as tightening the tilt and setting the game settings to extra hard. However, i am talking a general sense of all pins. What are some things you can do to make a machine more difficult?