Was doin some browsing and found a manual for a 1942 conversion kit (from KLOV.com i think)
I liked the list of requirements:
particularly the glass of water & a snack
There's also a section called
Optimize your profitsThorough Research shows that two and a half minute games both satisfy players and also keep the quarters flowing.
Without losing a life, it takes almost exactly 2:00 for the 1st stage, and another 2;00 for the second- does just starting the 2nd level satisfy you?
Also a good tip for when you first turn it on:
Yeah, umm, unless you installed a dry ice blower or an ashtray on your CP, smoke's not your friend.