these pins look better with the black rubbers than the factory white thats for sure.
The interesting thing is mine (being an early production run) has a painted cabinet, yet brett's has a decaled cabinet.

Mine seems to have  come from france and had the german or french rom set, Brett's game from germany but had the english rom set.

Brett's bk2000 started its life in the usa as the sticker on the back and inside had 115 volts stamped on them but on the fuse / filter box it has 230 volts stamped on it. so my guess is after it was a year or 2 old it ended up in germany, where as mine would have been shipped to france NIB from the williams factory (mine has an international serial number but brett's has an American serial number)

it would be so great to be able to find out where these pins have spent there 20 years of existance but no one has entered their serial numbers into the data base so their past will always remain a mystery.

Mine has had a lot more use than Brett's and looks like it is 20 years old inside but Brett's is more faded than mine but only looks about 5 years old inside and has had little use.

both pins have their good and bad points but if you were to rate both of them out of 10 i recon their score would be very close.