Filed the contacts to within a mm or 2 of its life to get rid of the pitting, but reckon they are beyond their useful life really.

Another issue! I checked the cabinet switches, they seem ok but......the button seems stuffed. The LHS flipper button will return of its own accord, even when I seperate the contact leaves from it. Must be a spring in the button? Anyway the RHS button will not return, it was relying on the contact leaves to push it back. Lucky the second player credit button from my arcade machine suited, and have installed it into the pin.

So where am I at? The top RHS is good now, but bottom one is only marginally better. Time to order those switches from Greg. Spent 3 hours fiddling with all those contacts/switches this afternoon, even skipped dinner because I seemed to be getting somewhere. I reckon I pretty much get how to adjust them now (its great to learn something), and as you said Nino they are not easy things to set.