yeh, I did Teenage Mutant Ninja Turtles which is a 1990/1991 model, and it went from warm and not very colourful insert wise, to absolutely bright and super colourful as buggery. It takes a little while to get over the massive difference( which clearly then becomes a big visual improvement) but I dont know if I would do my 1978 Williams Phoenix or not. I think I would have to leave that stock, or I think it would take away from what people saw in 1978, which you want to get close I think.
Its a matter of where do u start, and where do u stop ? 
and Gav, AC/DC doesnt come with Leds from factory, it was updated that one very quickly by the owner. I cant really see myself (yet) doing my NIB AC/DC because it shld be fine without it, but I will seek advice from as many friends who see the machine after I open it, and might go with the general consensus to start with. Hopefully Gav I can get u down for the unboxing with afew other AP members. Hell, I would even give u first game since u are such a bloody nice bloke, and great entertainment. I reckon that English accent doing a moving commentary would sound bloody good on the first video we make. Like the united nations of pinball. 
LOL- thanks mate, but i could never take a mans first game on a NIB... just wouldnt be right. Would be a pleasure to be there at the unveiling though..
