for the reflex unit, you want the wipers to be in the most counter-clockwise direction they can go and stay there. That will connect the most circuits and make the game the most liberal assuming the wipers are in the factory reset position.
for the adjust plugs, put them in to maximize the number of wires connected between the plug and socket
you can jumper in additional rivets on the mixers and spotting disc on some games ... you need the mixer and spotting disc diagrams to figure out what. If you are making those diagrams for games that don't have them posted on the bingo.cdyn.com site, I will hunt you down and get them from you
if you just want lots of features enabled easily and your game has a mixer 4 relay, misadjust the switch on that relay so it's always closed.
the games were designed to hold around 15% (pay back 85%), but some held more/less depending on player skill and strategy.
some general statements from an operator in Nevada:
- carnival queen - held too much. As the first screen game, bally was too conservative and players quickly left
- gay time / gayety - held too little. Get the magic pockets enabled and winning was too easy.
- 2/3 in blue for 300/600 - held too little. The green button allowed for enabling the blue fairly cheaply. He modified his games to make blue pay 5-in-green like the early screen games
- beach beauty - held too little. He liked the game, but couldn't operate it profitably so kept it at his house.
he was one of the operators that understood the games needed to pay to keep people playing. He also didn't screw around with the reflex unit and objected to it being illegal in Nevada (but grandfathered in). 'course, he liked to phrase it as "it made the game pay out if people haven't won in a while".
I can imagine him arguing to the gaming commission that while he wanted to make money, he didn't want to make too much.