Quoted from Jags:
I've done a few threads exploring the world of non-multiball pins, but now I would like to look at Pins that do have multi-ball, but only 2-ball multiball. Most pins I have seen have 3 or more multiball and I have seen some pins with 2 or 3 multiball like the Data East Secret Service. The only 2-ball only multiball that I can think of is a Williams Road Kings. There must be a at least a few others.
Please help by sharing with us any pins that you know of that have just a 2-ball multiball mode.