Quoted from DGMartin:Quick question for you guys. Does the system 4 Williams do fine with LED lights or will they flicker? I know you need the upgraded board from altek for bally and stern.
You might have some flickering. I know with Gorgor (System 6) I had to solder on a few resistors to the lamp sockets, but it shouldn't be that many IIRC. It's been a while since I had that game though. Congrats on the pick up!