Just finished a (slow and methodical) restoration on my 1972 Williams "Swinger" after finding it in a barn, mere days away from being hurled into the dump. Here are some before and after PF comparisons:
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She plays like a dream now and the rebuilt pops are STUPID-fast!
Here's the entire topic for anyone interested:
https://pinside.com/pinball/forum/topic/williams-swinger-restoration-and-eventual-retheme