Thanks for all the advice about lamp sockets. I have a couple of ones that seem a little flakey. I watched some videos on how to repair them, but at $1 a socket, I think I might just buy a few new ones.
Next question: I have the 2SMD LEDs with non-frosted domes in all the insert sockets. I find the ones for the bonus multipliers and shoot again inserts to be blindingly bright. I was thinking about getting 1SMD frosted ones instead. Not sure if I'll get white or color matching. What do people use for those? I read somewhere in this thread that the retro ones from Comet work well there, but the retro ones don't seem to be non-ghosting. I have a new Alltek lamp driver board, so I'm not sure if I still need non-ghosting LEDs. Anyway, interested in hearing people's thoughts.